This report describes the typical weather at the Newark Liberty International Airport (Newark & Elizabeth, New Jersey, United States) weather station over the course of an average February 2. It is based on the historical records from 1974 to 2012. Earlier records are either unavailable or unreliable.
Newark & Elizabeth, New Jersey has a humid continental climate with hot summers and no dry season. The area within 25 mi of this station is covered by built-up areas (45%), forests (24%), oceans and seas (15%), grasslands (8%), and lakes and rivers (4%).
The temperature typically varies from 28°F to 38°F and is rarely below 15°F or above 50°F.
The coolest hours of the day are from 2am to 9am with the coldest at 7am, at which time the temperature is below 35°F three days out of four.
The warmest hours of the day are from noon to 6pm with the hottest at 3pm, at which time the temperature is above 31°F three days out of four.
The day has gained half its heat by 11am and lost it again by 10pm.
On February 2 the Sun rises at 7:06am and sets at 5:14pm.
Solar noon is at 12:10pm.
For reference, on the longest day of the year the Sun rises at 5:25am and sets at 8:31pm, while on the shortest day of the year it rises at 7:17am and sets at 4:32pm.
Astronomical twilight begins and ends 94 minutes before sunrise and after sunset at 5:32am and 6:48pm, respectively.
Nautical twilight begins and ends 61 minutes before sunrise and after sunset at 6:04am and 6:16pm, respectively.
Civil twilight begins and ends 29 minutes before sunrise and after sunset at 6:37am and 5:43pm, respectively.
Solar twilight begins and ends 40 minutes after sunrise and before sunset at 7:46am and 4:34pm, respectively.
The median cloud cover is 81% (mostly cloudy) and does not vary substantially over the course of the day.
On average, the sky is clear or mostly clear 31% of the time, partly cloudy 15% of the time, and mostly cloudy or overcast 54% of the time.
There is a 47% chance that precipitation will be observed at some point during the day.
The average measured liquid-equivalent quantity of precipitation is 0.100". Among only those days for which there is at least some measured precipitation, the average is 0.327" and the total rarely exceeds 0.788".
When precipitation does occur it is most often in the form of slight snow (37% of days with precipitation have at worst slight snow), slight rain (26%), moderate rain (13%), heavy snow (11%), and moderate snow (8%).
Precipitation is most likely around 10am and least likely around midnight.
There is a 29% chance that there will be snow on the ground. The average snow depth is 3.6". The snow depth is deeper than 5.9" one year in four and deeper than 9.3" one year in ten.
The relative humidity typically ranges from 54% (mildly humid) to 70% (mildly humid), rarely dropping below 31% (comfortable), or exceeding 93% (very humid).
The air is driest at 3pm, at which time the relative humidity is less than 67% (mildly humid) three days out of four; it is most humid at 5am, exceeding 57% (mildly humid) three days out of four.
The dew point ranges from 19°F to 20°F with an average of 20°F.
For reference, comfortable indoor conditions should have a relative humidity between 30% and 50% with a dew point of less than 65°F.
Sustained wind speeds typically vary from 10 mph to 13 mph (gentle breeze to moderate breeze) over the course of the day.
The peak sustained wind speed typically occurs around 2pm and is rarely outside the range 6 mph to 21 mph (light breeze to fresh breeze).
The wind is most calm around 6am, rarely exceeding 17 mph (moderate breeze).
The wind is most often out of the west (22% of the time), north west (20% of the time), north (16% of the time), south west (14% of the time), and north east (10% of the time). The wind is least often out of the south east (3% of the time) and east (3% of the time).