Average Weather in January in New Britain Pennsylvania, United States
Daily high temperatures decrease by 2°F, from 40°F to 38°F, rarely falling below 25°F or exceeding 55°F. The lowest daily average high temperature is 38°F on January 30.
Daily low temperatures decrease by 3°F, from 27°F to 23°F, rarely falling below 10°F or exceeding 40°F. The lowest daily average low temperature is 23°F on January 30.
For reference, on July 20, the hottest day of the year, temperatures in New Britain typically range from 67°F to 85°F, while on January 30, the coldest day of the year, they range from 23°F to 38°F.
Average High and Low Temperature in January
The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on January. The horizontal axis is the day, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.
Average Hourly Temperature in January
The month of January in New Britain experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 53% throughout the month. The highest chance of overcast or mostly cloudy conditions is 54% on January 3.
The clearest day of the month is January 31, with clear, mostly clear, or partly cloudy conditions 47% of the time.
For reference, on January 3, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 54%, while on August 29, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 65%.
Cloud Cover Categories in January
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In New Britain, the chance of a wet day over the course of January is essentially constant, remaining around 22% throughout.
For reference, the year's highest daily chance of a wet day is 37% on July 15, and its lowest chance is 21% on January 28.
Over the course of January in New Britain, the chance of a day with only rain decreases from 15% to 10%, the chance of a day with mixed snow and rain remains an essentially constant 6% throughout, and the chance of a day with only snow remains an essentially constant 5% throughout.
Probability of Precipitation in January
The average sliding 31-day rainfall during January in New Britain is gradually decreasing, starting the month at 2.3 inches, when it rarely exceeds 4.0 inches or falls below 0.7 inches, and ending the month at 1.9 inches, when it rarely exceeds 3.6 inches or falls below 0.4 inches.
Average Monthly Rainfall in January
We report snowfall in liquid-equivalent terms. The actual depth of new snowfall is typically between 5 and 10 times the liquid-equivalent amount, assuming the ground is frozen. As with rainfall, we consider the liquid-equivalent snowfall accumulated over a sliding 31-day period centered around each day.
The average sliding 31-day liquid-equivalent snowfall during January in New Britain is essentially constant, remaining about 0.7 inches throughout, and rarely exceeding 2.2 inches or falling to 0.0 inches.
Average Monthly Liquid-Equivalent Snowfall in January
Over the course of January in New Britain, the length of the day is increasing. From the start to the end of the month, the length of the day increases by 45 minutes, implying an average daily increase of 1 minute, 30 seconds, and weekly increase of 10 minutes, 31 seconds.
The shortest day of the month is January 1, with 9 hours, 22 minutes of daylight and the longest day is January 31, with 10 hours, 7 minutes of daylight.
Hours of Daylight and Twilight in January
The latest sunrise of the month in New Britain is 7:23 AM on January 6 and the earliest sunrise is 13 minutes earlier at 7:10 AM on January 31.
The earliest sunset is 4:45 PM on January 1 and the latest sunset is 33 minutes later at 5:17 PM on January 31.
Daylight saving time is observed in New Britain during 2019, but it neither starts nor ends during January, so the entire month is in standard time.
For reference, on June 21, the longest day of the year, the Sun rises at 5:31 AM and sets 15 hours, 3 minutes later, at 8:33 PM, while on December 22, the shortest day of the year, it rises at 7:20 AM and sets 9 hours, 18 minutes later, at 4:38 PM.
Sunrise & Sunset with Twilight in January
The chance that a given day will be muggy in New Britain is essentially constant during January, remaining around 0% throughout.
For reference, on August 2, the muggiest day of the year, there are muggy conditions 51% of the time, while on January 24, the least muggy day of the year, there are muggy conditions 0% of the time.
Humidity Comfort Levels in January
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The average hourly wind speed in New Britain is gradually increasing during January, increasing from 6.7 miles per hour to 7.2 miles per hour over the course of the month.
For reference, on February 26, the windiest day of the year, the daily average wind speed is 7.5 miles per hour, while on August 12, the calmest day of the year, the daily average wind speed is 4.2 miles per hour.
Average Wind Speed in January
Wind Direction in January
New Britain is located near a large body of water (e.g., ocean, sea, or large lake). This section reports on the wide-area average surface temperature of that water.
The average surface water temperature in New Britain is decreasing during January, falling by 4°F, from 44°F to 39°F, over the course of the month.
Average Water Temperature in January
The growing season in New Britain typically lasts for 6.6 months (203 days), from around April 8 to around October 29, rarely starting before March 22 or after April 26, and rarely ending before October 9 or after November 16.
The month of January in New Britain is reliably fully outside of the growing season.
Time Spent in Various Temperature Bands and the Growing Season in January
The average accumulated growing degree days in New Britain are essentially constant during January, remaining within 4°F of 4°F throughout.
Growing Degree Days in January
The average daily incident shortwave solar energy in New Britain is gradually increasing during January, rising by 0.6 kWh, from 1.9 kWh to 2.5 kWh, over the course of the month.
Average Daily Incident Shortwave Solar Energy in January
For the purposes of this report, the geographical coordinates of New Britain are 40.299 deg latitude, -75.181 deg longitude, and 318 ft elevation.
The topography within 2 miles of New Britain contains only modest variations in elevation, with a maximum elevation change of 322 feet and an average elevation above sea level of 302 feet. Within 10 miles contains only modest variations in elevation (837 feet). Within 50 miles also contains very significant variations in elevation (1,699 feet).
The area within 2 miles of New Britain is covered by trees (49%), artificial surfaces (35%), and cropland (12%), within 10 miles by artificial surfaces (41%) and cropland (30%), and within 50 miles by trees (42%) and artificial surfaces (29%).
This report illustrates the typical weather in New Britain year round, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.
Temperature and Dew Point
There are 4 weather stations near enough to contribute to our estimation of the temperature and dew point in New Britain.
For each station, the records are corrected for the elevation difference between that station and New Britain according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.
The estimated value at New Britain is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between New Britain and a given station.
The stations contributing to this reconstruction are: Doylestown Airport (60%, 6 kilometers, northeast); Willow Grove, Naval Air Station (26%, 11 kilometers, south); Quakertown Airport (9%, 23 kilometers, northwest); and Pottstown Limerick Airport (5%, 32 kilometers, west).
Time zones for aiports and weather stations are provided by AskGeo.com .