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The convention of the weather and climate community has been to calculate the observed daily mean temperature by summing the maximum and minimum instantaneous temperatures during a 24-hour period and dividing by two. However, does this recording method capture and represent the true average temperature over the course of a day? This conventional approach fails to integrate significant behaviors of temperature associated with rapid weather events, frontal passages, sea breezes, and even seasonal temperature variations. It is possible that sampling more frequently and finding a more representative value for daily temperature averages will reveal patterns in which the daily mean temperature skews towards the daily maximum or minimum (i.e., the full-day average temperature is more often closer to the daily maximum or the daily minimum).

Latest Extremes

City, State Temp
West Cape May, NJ 66
Seaside Heights, NJ 63
West Deptford, NJ 63
Jersey City, NJ 63
Pennsauken, NJ 63
City, State Temp
Walpack, NJ 48
Pequest, NJ 48
Hope, NJ 49
Basking Ridge, NJ 49
Hopewell Twp., NJ 50
most current information as of Jun 28 6:35 AM

Latest Conditions & Forecast

New Brunswick, NJ

Rutgers University Meteorology Program

54°F

Wind

0 mph from the WNW

Wind Gust

2 mph from the NW

Sunny
80 °F
Mostly Clear
60 °F
Mostly Sunny
86 °F
Partly Cloudy
68 °F
Partly Sunny then Slight Chance T-storms
90 °F
Slight Chance T-storms then Partly Cloudy
70 °F
Partly Sunny then Chance T-storms
89 °F
Chance T-storms
72 °F
Chance T-storms
88 °F
Partly Cloudy
69 °F
Mostly Sunny
88 °F
Mostly Cloudy
68 °F
Chance T-storms
86 °F

Today

Sunny, with a high near 80. Light northwest wind becoming west 6 to 11 mph in the morning.

Tonight

Mostly clear, with a low around 60. Southwest wind around 5 mph becoming calm in the evening.

Thursday

Mostly sunny, with a high near 86. Southwest wind 8 to 15 mph.

Thursday Night

Partly cloudy, with a low around 68. Southwest wind around 13 mph.

Friday

A slight chance of showers and thunderstorms after noon. Partly sunny, with a high near 90. Southwest wind 11 to 13 mph. Chance of precipitation is 20%.

Friday Night

A slight chance of showers and thunderstorms before 10pm. Partly cloudy, with a low around 70. Chance of precipitation is 20%.

Saturday

A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 89. Chance of precipitation is 30%.

Saturday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 72. Chance of precipitation is 50%.

Sunday

A chance of showers and thunderstorms. Partly sunny, with a high near 88. Chance of precipitation is 40%.

Sunday Night

Partly cloudy, with a low around 69.

Monday

Mostly sunny, with a high near 88.

Monday Night

Mostly cloudy, with a low around 68.

Independence Day

A chance of showers and thunderstorms. Partly sunny, with a high near 86. Chance of precipitation is 30%.

Search by zipcode or city/state for the latest conditions, forecasts, graphs, maps and more nearest to you.

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Bayonne street flooding

It is always comforting to enter the water demand season, namely summer, with a bit of a hydrological cushion. Such is the case this year across NJ, thanks to ample rain and some late-season snow in recent months. This timely precipitation has eliminated drought concerns that stemmed from drier-than-normal intervals during 2016. As a result of the precipitation deficits, ground water, streamflow, and reservoirs all dropped to precarious levels, thus the issuance last fall of a drought warning by the NJ Department of Environmental Protection over northern NJ and a drought watch in some...

Cherry blossom photo

Following a March with the first substantially below-average monthly temperature anomaly in NJ in over a year, April brought a return to record warmth last seen in February. With a statewide average of 56.0°, the month was 5.1° above the 1981–2010 mean. This ranked as the warmest April since statewide records commenced in 1895. Five of the top 10 and nine of the top 20 mildest Aprils of the past 123 years have occurred since 2002. With the warmth of January, February, and April hardly balanced by the colder March, this year is off to the 4th warmest start on record. Only January–April...

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With the Northern Hemisphere atmosphere transitioning from winter to spring, March can be a month of frequently-changing weather with pronounced pressure gradients, thus punctuated by windy conditions. This past March was no exception, and in fact, a windier month would be difficult to find. Winds gusted to 50 mph or greater at one or more NJWxNet station on 11 days and between 40–49 mph on four other days. At most locations, the warmest daily average temperature of the month was, of all things, on March 1st, while the first 80° day of the year was on the 25th. In between those warm spells...

Latest Blog Posts

The following report was written by Eric Davis, a Chatham High School Senior, based on research performed during 1-month internship at the Office of the NJ State Climatologist The convention of the weather and climate community has been to calculate the observed daily mean temperature by summing the maximum and minimum instantaneous temperatures during a 24-hour period and dividing by two....
Radar image
The several-hour-long downpour that drenched parts of Mercer and Middlesex County on the afternoon of July 30, 2016, represented an exceptionally rare event for the area. Afternoon and evening thunderstorms dropped 7.23” in West Windsor (Mercer County), with Plainsboro (Mercer) reporting 5.15”, South Brunswick (Middlesex) 5.03,” and North Brunswick (Middlesex) 4.90”. These rainfall totals were...

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First NJ Freeze of the Fall Season

September 24, 2013 - 12:00am -- Dave Robinson

Frost on grass

At 3:40 AM this morning, Tuesday September 24, the temperature at the NJ Weather and Climate Network (NJWxNet) SafetyNet station in Walpack (Sussex County) fell to 32°. This marks the first freezing observation of the fall season at a New Jersey location. With dense cold air draining from the surrounding hillsides, this northwest valley location is commonly amongst the coldest locations in the 56-station NJWxNet constellation. The Walpack temperature vacillated between a minimum of 31° and 32° the rest of the night until climbing to 33° at 6:45. Walpack had previously fallen to a summer minimum of 33° this month on September 17th and 18th.

Other chilly locations this morning include Pequest (Warren) 33°, Basking Ridge (Somerset) 35°, and nine other NJWxNet stations between 37°-39°. Meanwhile, coastal stations at Harvey Cedars (Ocean) and West Cape May (Cape May) were the mildest locations at 49°.

A Cool August and a Warm and Wet Summer of 2013

September 2, 2013 - 12:00am -- Dave Robinson

Tornado Damage

After two warm and wet months to start off the summer of 2013, August provided an about face in the temperature department. The 71.6° statewide mean is 1.8° below the 1981-2010 average and ranks as the 41st coolest August since statewide records commenced in 1895. It was only 0.1° warmer than this past June. Precipitation averaged 4.50", which is 0.29" above normal and makes this the 51st wettest of the past 119 Augusts.

What a change from July. There were only four afternoons when the temperature was 90° or higher somewhere in the state, compared with 18 in July. The warmest it got was 93° at Harrison (Hudson County) on the 21st and only nine stations reached 90° at some point during the month, compared to most of the 50 NJWxNet stations reaching that mark in July.

Yet another hot summer month: July 2013 Summary

August 4, 2013 - 12:00am -- Dave Robinson

Tornado Damage in Berkeley Heights

July 2013 marked yet another in a lengthening sequence of hot mid-summer months across New Jersey. Most notable this year was the frequency of unusually warm nighttime temperatures. Accompanying the warmth and often excessive humidity were widely varying rainfall totals, which on a statewide basis averaged above the long-term mean. The statewide average temperature of 78.2° was 3.2° above average. This ranks as the 5th warmest July since records commenced in 1895. Remarkably, the most recent four Julys all are within the top six, with three other Julys from the last 20 years also populating the top 10.

The statewide average temperature of 78.2° was 3.2° above average. This ranks as the 5th warmest July since records commenced in 1895 (Table 1). Remarkably, the most recent four Julys all are within the top six, with three other Julys from the last 20 years also populating the top 10.

No escaping a sultry, sweaty heat wave

July 22, 2013 - 8:09pm -- Dan Manzo

Garden State residents suffered through another heat wave last week, and at times it seemed like the unrelenting heat would never subside. A heat wave is unofficially defined as three or more consecutive days with the maximum temperature at or over 90°. This heat wave lasted seven days for many areas and furthermore, very high dew points (a measure of moisture in the air) made the heat index soar above 105°.

The heat wave began for many on Sunday, July 14, with stations in central and northeast Jersey, such as Haworth, Jersey City, New Brunswick, Howell, and Toms River all recording high temperatures in the low 90°s. Hawthorne was the hottest spot with a high temperature of 94°. Other stations recorded high temperatures in the upper 80°s. This combined with widespread dew points above 70° resulted in heat indices at or near 100°.

Union County towns see rare tornado

July 3, 2013 - 1:24pm -- Tom Karmel

Tornado Damage in Berkeley Heights

Mary Borsos walked toward her backdoor the morning of July 1 in Berkeley Heights (Union County) and noticed the rain falling in heavy sheets. “It didn't seem like anything unusual due to all the rain and thunderstorms we’ve had these past couple weeks.”

However, she quickly noticed the wind pick up, and took her three grandchildren a couple steps into the dining room away from windows. Within those couple steps, she heard trees begin to snap and branches pound the house. In what she described as “no more than two minutes”, Borsos’ yard was littered with downed trees, snapped power lines, and scattered outdoor furniture. Little did Borsos and many know, three towns encountered their first ever documented tornado.

Record Wet June and Mid-Year Recap

July 1, 2013 - 12:00am -- Dave Robinson

Raritan River flooding

Rain, rain and, more rain was the theme for New Jersey weather in June 2013. When all was said and done, statewide average precipitation totaled 9.57", a record for any June back to 1895 (Table 1). Temperatures were above average too. The average of 71.3° was 1.2° above the 1981-2010 mean and ranked as the 19th warmest June. These averages are derived from an evaluation of several dozen long-term National Weather Service Cooperative Observing (Coop) stations situated throughout the state.

More on thermal conditions later in this report, but first back to the precipitation. The 9.57" total was 5.55" above the 4.02" average. Tropical Storm Andrea brought the most abundant rain of the month, but there were 13 days during the month when an inch or more accumulated at one or more locations. A point of information is warranted here. While over an inch fell in some locations on the afternoon of the 30th, most Coop observers had already reported for the day, as had Community Collaborative Rain, Hail and Snow Network (CoCoRaHS) observers. Most take measurements close to 7 AM, with the historic rule being that the morning observation "ends" that particular calendar day. Thus any rain after that time on the last day of a month is reported on the 1st of the following month. While this practice can be debated, one can only compare June 2013 with previous Junes by following suit.

May 2013 Summary and Spring Recap

June 2, 2013 - 12:00am -- Dave Robinson

Seaside Heights boardwalk rebuild

If there is one thing that was consistent with New Jersey's weather in May, and for that matter throughout this past spring (March-May), it was the inconsistency. Of course this is rather typical of many a spring month, as our region sits in the battle zone between reluctantly retreating winter conditions and sporadically advancing summer weather. When all was said and done, May 2013 came in with a near average statewide temperature of 60.7°. This was 0.1° below the 1981-2010 average and ranks as the 53rd mildest May of the past 119 years (1895-present). Precipitation averaged 4.01", a minute 0.01" above average and was the 42nd wettest on record. It was not only day-to-day conditions that varied in May, there were also notable differences in temperature and precipitation from one location to another.

April 2013 Summary and 2012-2013 Snow Season Recap

May 4, 2013 - 12:00am -- Dave Robinson

April sea breeze map

While many wondered if spring would ever arrive across the Garden State, the average April temperature was actually close to the long-term mean. At 51.5°, the month was 0.3° above average, ranking as the 35th mildest April since statewide records were established in 1895. Using the central NJ city of New Brunswick as an example, 16 days were above average, 12 below, and two spot on average.

A Chilly Start to Spring: March 2013

April 7, 2013 - 12:00am -- Dave Robinson

While the core of the winter season (December-February) averaged quite a bit milder than usual across New Jersey (see winter summary in the February narrative), the broader cool season began with a November that was cooler than average with above-average snowfall and ended with a cooler and snowier than average March, making for what seemed to be a long winter. Looking more closely at March 2013, the statewide average of 38.3° was 2.8° below the 1981-2010 average and ranked as the 37th coolest since 1895. What a difference a year makes, as March 2012 was 11.5° warmer than this year! Precipitation (rain and melted snowfall) averaged 3.05", which is 1.18" below average and the 36th driest on record. Snowfall averaged 5.2", which is 1.0" above average.

Chilly conditions were rather consistent during March, with only six days where one or more observing stations in NJ reached a maximum of 60° or higher. There was an absence of excessive cold, with lows falling into the teens in some locations on 12 mornings, yet most of the state dropping no lower than the 20°s at any point. Beginning with the cold lows, the 3rd and 4th both dawned with the NJWxNet High Point and High Point Monument stations (Sussex County) at 18° and 19°, respectively. Walpack (Sussex) was coldest at 19° on the 9th. The 10th was one of the three coldest mornings statewide in March. Pequest (Warren), Berkeley Township (Ocean), and Walpack fell to 19°, with a total of 23 of the 55 stations in the NJWxNet at 25° or colder.

A Rather Average Month, A Mild Winter 2012/2013

March 15, 2013 - 3:59pm -- Dave Robinson

Snow cover photo

An amalgamation of cold and mild spells, a few moderate rain events, one significant snowstorm, and several local or minor snowfalls brought a rather average February in the weather department to New Jersey. Preliminary numbers indicate an average temperature of 32.5°. This is 1.3° below normal and 53rd warmest of the 119 Februaries since 1895. Precipitation averaged 3.28" (rain and melted snow/sleet), which is 0.42" above normal and 44th wettest. Snowfall averaged 6.8", which is 1.2" below normal and 53rd most snowy.

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