Average Weather in Dunnigan California, United States
In Dunnigan, the summers are hot, arid, and mostly clear and the winters are cold, wet, and partly cloudy. Over the course of the year, the temperature typically varies from 38°F to 96°F and is rarely below 29°F or above 104°F.
The hot season lasts for 3.7 months, from June 5 to September 25, with an average daily high temperature above 87°F. The hottest day of the year is July 18, with an average high of 96°F and low of 61°F.
The cool season lasts for 3.0 months, from November 21 to February 20, with an average daily high temperature below 62°F. The coldest day of the year is December 31, with an average low of 38°F and high of 53°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 Dunnigan, 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 Dunnigan begins around May 16 and lasts for 5.3 months, ending around October 24. On July 20, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 91% of the time, and overcast or mostly cloudy 9% of the time.
The cloudier part of the year begins around October 24 and lasts for 6.7 months, ending around May 16. On January 11, the cloudiest day of the year, the sky is overcast or mostly cloudy 56% of the time, and clear, mostly clear, or partly cloudy 44% of the time.
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Dunnigan varies significantly throughout the year.
The wetter season lasts 5.5 months, from October 31 to April 14, with a greater than 16% chance of a given day being a wet day. The chance of a wet day peaks at 33% on February 20.
The drier season lasts 6.5 months, from April 14 to October 31. The smallest chance of a wet day is 0% on July 17.
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 33% on February 20.
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. Dunnigan experiences extreme seasonal variation in monthly rainfall.
The rainy period of the year lasts for 8.1 months, from September 27 to May 31, with a sliding 31-day rainfall of at least 0.5 inches. The most rain falls during the 31 days centered around February 16, with an average total accumulation of 5.0 inches.
The rainless period of the year lasts for 3.9 months, from May 31 to September 27. The least rain falls around July 30, with an average total accumulation of 0.0 inches.
Average Monthly Rainfall
The length of the day in Dunnigan varies significantly over the course of the year. In 2017, the shortest day is December 21, with 9 hours, 26 minutes of daylight; the longest day is June 21, with 14 hours, 54 minutes of daylight.
Hours of Daylight and Twilight
The earliest sunrise is at 5:41 AM on June 13, and the latest sunrise is 1 hour, 57 minutes later at 7:38 AM on November 4. The earliest sunset is at 4:45 PM on December 7, and the latest sunset is 3 hours, 52 minutes later at 8:37 PM on June 27.
Daylight saving time (DST) is observed in Dunnigan 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 Dunnigan, 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
Average Wind Speed
The predominant average hourly wind direction in Dunnigan varies throughout the year.
The wind is most often from the south for 1.6 months, from February 20 to April 8 and for 5.5 months, from April 17 to October 1, with a peak percentage of 77% on August 5. The wind is most often from the north for 1.3 weeks, from April 8 to April 17 and for 4.7 months, from October 1 to February 20, with a peak percentage of 33% on April 12.
Dunnigan 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 water temperature experiences some seasonal variation over the course of the year.
The time of year with warmer water lasts for 2.5 months, from August 16 to November 2, with an average temperature above 55°F. The day of the year with the warmest water is September 23, with an average temperature of 56°F.
The time of year with cooler water lasts for 3.1 months, from March 30 to July 2, with an average temperature below 52°F. The day of the year with the coolest water is May 12, with an average temperature of 51°F.
Average Water Temperature
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 7 to August 25, with an average daily incident shortwave energy per square meter above 7.1 kWh. The brightest day of the year is June 27, with an average of 8.4 kWh.
The darker period of the year lasts for 3.6 months, from November 2 to February 19, with an average daily incident shortwave energy per square meter below 3.4 kWh. The darkest day of the year is December 26, with an average of 2.0 kWh.
Average Daily Incident Shortwave Solar Energy
For the purposes of this report, the geographical coordinates of Dunnigan are 38.885 deg latitude, -121.970 deg longitude, and 79 ft elevation.
The topography within 2 miles of Dunnigan contains only modest variations in elevation, with a maximum elevation change of 272 feet and an average elevation above sea level of 84 feet. Within 10 miles contains only modest variations in elevation (1,867 feet). Within 50 miles contains very significant variations in elevation (6,096 feet).
The area within 2 miles of Dunnigan is covered by cropland (76%) and grassland (24%), within 10 miles by cropland (59%) and grassland (37%), and within 50 miles by cropland (39%) and grassland (25%).
This report illustrates the typical weather in Dunnigan, 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 Dunnigan.
For each station, the records are corrected for the elevation difference between that station and Dunnigan 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 Dunnigan is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Dunnigan and a given station.
The stations contributing to this reconstruction are: Sacramento International Airport (32%, 39 kilometers, southeast); Yuba County Airport (29%, 42 kilometers, northeast); University Airport (29%, 42 kilometers, southeast); and Sonoma County Airport (10%, 84 kilometers, southwest).
Time zones for aiports and weather stations are provided by AskGeo.com .