Average Weather in April in Pittsburg California, United States
Daily low temperatures increase by 4°F, from 47°F to 51°F, rarely falling below 41°F or exceeding 56°F.
For reference, on July 17, the hottest day of the year, temperatures in Pittsburg typically range from 58°F to 90°F, while on December 31, the coldest day of the year, they range from 39°F to 55°F.
Average High and Low Temperature in April
The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on April. 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 April
Santiago, Chile (5,940 miles away); Santo André, Portugal (5,657 miles); and Mannum, Australia (8,082 miles) are the far-away foreign places with temperatures most similar to Pittsburg (view comparison).
The month of April in Pittsburg experiences decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 47% to 39%.
The clearest day of the month is April 28, with clear, mostly clear, or partly cloudy conditions 61% of the time.
For reference, on January 11, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 59%, while on July 20, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 91%.
Cloud Cover Categories in April
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Pittsburg, the chance of a wet day over the course of April is rapidly decreasing, starting the month at 16% and ending it at 9%.
For reference, the year's highest daily chance of a wet day is 28% on February 20, and its lowest chance is 0% on August 2.
Probability of Precipitation in April
The average sliding 31-day rainfall during April in Pittsburg is decreasing, starting the month at 1.6 inches, when it rarely exceeds 3.7 inches or falls below 0.1 inches, and ending the month at 0.7 inches, when it rarely exceeds 1.8 inches.
Average Monthly Rainfall in April
Over the course of April in Pittsburg, the length of the day is rapidly increasing. From the start to the end of the month, the length of the day increases by 1 hour, 7 minutes, implying an average daily increase of 2 minutes, 18 seconds, and weekly increase of 16 minutes, 9 seconds.
The shortest day of the month is April 1, with 12 hours, 39 minutes of daylight and the longest day is April 30, with 13 hours, 46 minutes of daylight.
Hours of Daylight and Twilight in April
The latest sunrise of the month in Pittsburg is 6:52 AM on April 1 and the earliest sunrise is 40 minutes earlier at 6:12 AM on April 30.
The earliest sunset is 7:31 PM on April 1 and the latest sunset is 27 minutes later at 7:57 PM on April 30.
Daylight saving time is observed in Pittsburg during 2017, but it neither starts nor ends during April, so the entire month is in daylight saving time.
For reference, on June 21, the longest day of the year, the Sun rises at 5:45 AM and sets 14 hours, 49 minutes later, at 8:33 PM, while on December 21, the shortest day of the year, it rises at 7:20 AM and sets 9 hours, 31 minutes later, at 4:51 PM.
Sunrise & Sunset with Twilight and Daylight Saving Time in April
The chance that a given day will be muggy in Pittsburg is essentially constant during April, remaining around 0% throughout.
For reference, on April 22, the muggiest day of the year, there are muggy conditions 0% of the time, while on January 1, the least muggy day of the year, there are muggy conditions 0% of the time.
Humidity Comfort Levels in April
The average hourly wind speed in Pittsburg is gradually increasing during April, increasing from 8.2 miles per hour to 9.1 miles per hour over the course of the month.
For reference, on July 15, the windiest day of the year, the daily average wind speed is 10.9 miles per hour, while on January 21, the calmest day of the year, the daily average wind speed is 6.6 miles per hour.
Average Wind Speed in April
Wind Direction in April
Pittsburg 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 Pittsburg is essentially constant during April, remaining around 53°F throughout.
Average Water Temperature in April
The growing season in Pittsburg typically lasts for 11 months (322 days), from around January 23 to around December 11, rarely starting after February 23, or ending before November 20.
The month of April in Pittsburg is reliably fully within the growing season.
Time Spent in Various Temperature Bands and the Growing Season in April
The average accumulated growing degree days in Pittsburg are increasing during April, increasing by 275°F, from 363°F to 638°F, over the course of the month.
Growing Degree Days in April
The average daily incident shortwave solar energy in Pittsburg is increasing during April, rising by 1.3 kWh, from 5.6 kWh to 6.9 kWh, over the course of the month.
Average Daily Incident Shortwave Solar Energy in April
For the purposes of this report, the geographical coordinates of Pittsburg are 38.028 deg latitude, -121.885 deg longitude, and 10 ft elevation.
The topography within 2 miles of Pittsburg contains only modest variations in elevation, with a maximum elevation change of 194 feet and an average elevation above sea level of 31 feet. Within 10 miles contains only modest variations in elevation (3,455 feet). Within 50 miles also contains extreme variations in elevation (4,324 feet).
The area within 2 miles of Pittsburg is covered by artificial surfaces (47%), herbaceous vegetation (24%), and water (22%), within 10 miles by grassland (35%) and herbaceous vegetation (23%), and within 50 miles by cropland (30%) and grassland (24%).
This report illustrates the typical weather in Pittsburg 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 Pittsburg.
For each station, the records are corrected for the elevation difference between that station and Pittsburg 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 Pittsburg is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Pittsburg and a given station.
The stations contributing to this reconstruction are: Buchanan Field Airport (55%, 15 kilometers, west); Travis Air Force Base (24%, 27 kilometers, north); Livermore Municipal Airport (14%, 38 kilometers, south); and Stockton Metropolitan Airport (7%, 60 kilometers, east).
Time zones for aiports and weather stations are provided by AskGeo.com .