Average Weather in Wasco California, United States
In Wasco, the summers are sweltering, arid, and clear and the winters are cold and partly cloudy. Over the course of the year, the temperature typically varies from 38°F to 99°F and is rarely below 30°F or above 106°F.
The hot season lasts for 3.4 months, from June 8 to September 20, with an average daily high temperature above 91°F. The hottest day of the year is July 26, with an average high of 99°F and low of 68°F.
The cool season lasts for 3.2 months, from November 19 to February 24, with an average daily high temperature below 66°F. The coldest day of the year is December 30, with an average low of 38°F and high of 58°F.
Average High and Low Temperature
The figure below shows you a compact characterization of the entire year of hourly average temperatures. The horizontal axis is the day of the year, 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 Wasco, the average percentage of the sky covered by clouds experiences significant seasonal variation over the course of the year.
The clearer part of the year in Wasco begins around May 7 and lasts for 5.8 months, ending around November 1. On August 9, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 92% of the time, and overcast or mostly cloudy 8% of the time.
The cloudier part of the year begins around November 1 and lasts for 6.2 months, ending around May 7. On February 21, the cloudiest day of the year, the sky is overcast or mostly cloudy 43% of the time, and clear, mostly clear, or partly cloudy 57% of the time.
Cloud Cover Categories
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Wasco varies throughout the year.
The wetter season lasts 5.1 months, from November 9 to April 12, with a greater than 12% chance of a given day being a wet day. The chance of a wet day peaks at 23% on February 21.
The drier season lasts 6.9 months, from April 12 to November 9. The smallest chance of a wet day is 0% on June 27.
Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 23% on February 21.
Daily Chance of Precipitation
To show variation within the months and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day of the year. Wasco experiences some seasonal variation in monthly rainfall.
The rainy period of the year lasts for 6.3 months, from October 19 to April 29, with a sliding 31-day rainfall of at least 0.5 inches. The most rain falls during the 31 days centered around January 4, with an average total accumulation of 2.0 inches.
The rainless period of the year lasts for 5.7 months, from April 29 to October 19. The least rain falls around July 7, with an average total accumulation of 0.0 inches.
Average Monthly Rainfall
The length of the day in Wasco varies significantly over the course of the year. In 2017, the shortest day is December 21, with 9 hours, 45 minutes of daylight; the longest day is June 20, with 14 hours, 34 minutes of daylight.
Hours of Daylight and Twilight
The earliest sunrise is at 5:41 AM on June 12, and the latest sunrise is 1 hour, 41 minutes later at 7:22 AM on November 4. The earliest sunset is at 4:43 PM on December 5, and the latest sunset is 3 hours, 33 minutes later at 8:17 PM on June 28.
Daylight saving time (DST) is observed in Wasco during 2017, starting in the spring on March 12, lasting 7.8 months, and ending in the fall on November 5.
Sunrise & Sunset with Twilight and Daylight Saving Time
The perceived humidity level in Wasco, as measured by the percentage of time in which the humidity comfort level is muggy, oppressive, or miserable, does not vary significantly over the course of the year, remaining a virtually constant 0% throughout.
Humidity Comfort Levels
The average hourly wind speed in Wasco experiences mild seasonal variation over the course of the year.
The windier part of the year lasts for 4.5 months, from March 28 to August 13, with average wind speeds of more than 5.9 miles per hour. The windiest day of the year is June 4, with an average hourly wind speed of 7.1 miles per hour.
The calmer time of year lasts for 7.5 months, from August 13 to March 28. The calmest day of the year is November 12, with an average hourly wind speed of 4.7 miles per hour.
Average Wind Speed
The predominant average hourly wind direction in Wasco varies throughout the year.
The wind is most often from the west for 9.2 months, from February 18 to November 23, with a peak percentage of 69% on July 27. The wind is most often from the south for 2.8 months, from November 23 to February 18, with a peak percentage of 39% on January 1.
The average daily incident shortwave solar energy experiences extreme seasonal variation over the course of the year.
The brighter period of the year lasts for 3.6 months, from May 2 to August 22, with an average daily incident shortwave energy per square meter above 7.4 kWh. The brightest day of the year is June 21, with an average of 8.6 kWh.
The darker period of the year lasts for 3.3 months, from November 5 to February 15, with an average daily incident shortwave energy per square meter below 3.8 kWh. The darkest day of the year is December 26, with an average of 2.7 kWh.
Average Daily Incident Shortwave Solar Energy
For the purposes of this report, the geographical coordinates of Wasco are 35.594 deg latitude, -119.341 deg longitude, and 325 ft elevation.
The topography within 2 miles of Wasco is essentially flat, with a maximum elevation change of 49 feet and an average elevation above sea level of 327 feet. Within 10 miles is essentially flat (305 feet). Within 50 miles contains only modest variations in elevation (8,041 feet).
The area within 2 miles of Wasco is covered by cropland (81%) and artificial surfaces (19%), within 10 miles by cropland (95%), and within 50 miles by grassland (41%) and cropland (40%).
This report illustrates the typical weather in Wasco, 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 6 weather stations near enough to contribute to our estimation of the temperature and dew point in Wasco.
For each station, the records are corrected for the elevation difference between that station and Wasco 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 Wasco is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Wasco and a given station.
The stations contributing to this reconstruction are: Meadows Field (51%, 32 kilometers, southeast); Porterville Municipal Airport (23%, 55 kilometers, northeast); Paso Robles Municipal Airport (7%, 117 kilometers, west); San Luis Obispo County Airport (7%, 124 kilometers, west); Santa Maria Airport (6%, 127 kilometers, southwest); and Santa Ynez Airport (6%, 129 kilometers, southwest).
Time zones for aiports and weather stations are provided by AskGeo.com .