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United StatesThe climate of Richardson
The current climate in Richardson features temperatures ranging from a high of 22°C to a low of 8°C throughout the year. The average yearly temperature is around 15°C. At night, temperatures in the colder months average around 3°C and in the warmer months around 12°C.
Average temperatures and precipitation
This chart shows the average monthly maximum and minimum temperatures (in degrees Celsius) and average monthly rainfall (in millimeters) for Richardson, Washington.
Temperature records
The highest temperature recorded in Richardson in recent years was 33°C in June 2021. The lowest daytime temperature recorded was -6°C in December 2021.
Precipitation and snowfall
On average, Richardson gets 562 mm of precipitation each year. Of this, about 25 cm is snowfall. For comparison, New York gets 1142 mm of precipitation each year.
Best time to visit Richardson?
The best time to visit Richardson for sunny weather is June through September. During this period, you'll have nice temperatures and not too much rain, making it a great time to visit Richardson. In the other months of the year, there's too much rain or the temperature isn't ideal for a visit if you want sunny and pleasant weather.
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Climate Table of Richardson
The climate table of Richardson shows the average temperatures, rainfall, snow, and UV index per month. The table provides an overview of the average day and night temperatures in degrees Celsius, the total amount of rainfall in millimeters, the total snowfall in centimeters, and the UV index for each month. Rainfall is always measured as water, even if it's snow or hail.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
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| Temp. max (°C) | 9 | 8 | 12 | 14 | 17 | 20 | 22 | 22 | 19 | 15 | 11 | 8 |
| Temp. min (°C) | 4 | 3 | 5 | 7 | 9 | 11 | 12 | 13 | 11 | 9 | 6 | 4 |
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| Precipitation (mm) | 58 | 78 | 35 | 29 | 23 | 18 | 6,9 | 8,7 | 29 | 64 | 137 | 75 |
| Snow (cm) | 2,8 | 10 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0,8 | 11 |
| UV Index | 2 | 3 | 3 | 4 | 4 | 8 | 5 | 4 | 3 | 3 | 2 | 2 |
Click on the month name to see more weather details, like daily averages, temperatures, and precipitation for the past years in that month.
Temperature charts
These charts display the average temperatures in Richardson, Washington. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Average Temperature per Month in Richardson
Yearly Temperature in Richardson
Precipitation charts
These charts show the average amount of precipitation in Richardson, Washington. Precipitation is always measured as water, even when it falls as snow or hail. The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Average Precipitation per Month in Richardson
Total Yearly Precipitation in Richardson
Average Snowfall per Month in Richardson
Total Yearly Snowfall in Richardson
UV index chart
This chart shows the average UV index per month in Richardson, Washington. The UV index indicates the intensity of ultraviolet radiation and ranges from 0 to a maximum of 11.
Average UV Index per Month in Richardson
Weather experiences in Richardson
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Average weather in Richardson by month
Click on a month below to see detailed weather info for Richardson. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.