Climate Insights for Pasco

Laramie County, Washington, United States

Hottest
August
35°C peak
Coldest
December
-5°C low
Wettest
October
86mm rain
Best to Visit
April, May, June
Mild temps & low rain

Climate Overview

The climate in Pasco is temperate. The average annual temperature is 14°C and approximately 299mm of precipitation falls per year. October is the wettest month, receiving around 86mm of rainfall. Pasco is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, June. The coldest months are December, January, February, when temperatures can drop to -5°C. Light snow can occur between January and December.

Temperature

-10° 10° 20° 30° 40° Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Max: 6° Average: 2° Min: -1° Feb Max: 12° Average: 7° Min: 3° Mar Max: 16° Average: 10° Min: 5° Apr Max: 26° Average: 17° Min: 10° May Max: 28° Average: 20° Min: 13° Jun Max: 32° Average: 23° Min: 16° Jul Max: 34° Average: 26° Min: 18° Aug Max: 35° Average: 26° Min: 17° Sep Max: 27° Average: 19° Min: 11° Oct Max: 18° Average: 13° Min: 9° Nov Max: 14° Average: 8° Min: 5° Dec Max: 2° Average: -2° Min: -5°
Max
Average
Min

Pasco has a wide annual temperature range, spanning 40°C from the coldest to warmest months. The warmest month is August, when average highs reach 35°C and the mean temperature sits around 26°C. The coldest month is December, when overnight lows fall to -5°C and the daily average is -2°C. On average, daily temperatures fluctuate by about 13°C between overnight lows and afternoon highs. The sharpest temperature change occurs between November and December, with a 10°C shift in average temperatures.

Precipitation

0mm 25mm 50mm 75mm 100mm Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Precipitation: 44mm Snow: 4mm Feb Precipitation: 19mm Snow: 0mm Mar Precipitation: 36mm Snow: 0mm Apr Precipitation: 5mm Snow: 0mm May Precipitation: 25mm Snow: 0mm Jun Precipitation: 11mm Snow: 0mm Jul Precipitation: 3mm Snow: 0mm Aug Precipitation: 0mm Snow: 0mm Sep Precipitation: 8mm Snow: 0mm Oct Precipitation: 86mm Snow: 0mm Nov Precipitation: 20mm Snow: 0mm Dec Precipitation: 42mm Snow: 31mm
Precipitation
Snow

Pasco is a quite dry location, receiving approximately 299mm of precipitation annually, which averages out to around 25mm per month. The wettest month is October, averaging 86mm of rainfall. January and December also tend to see above-average precipitation. The driest month is August, with just 0mm. That's 86mm less than October, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic. Light snowfall can occur between January and December, totalling around 35cm annually. December is the snowiest month with approximately 31cm.

Wind

0km/h 5km/h Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Wind Speed: 2km/h Feb Wind Speed: 2km/h Mar Wind Speed: 3km/h Apr Wind Speed: 3km/h May Wind Speed: 3km/h Jun Wind Speed: 3km/h Jul Wind Speed: 3km/h Aug Wind Speed: 2km/h Sep Wind Speed: 3km/h Oct Wind Speed: 3km/h Nov Wind Speed: 2km/h Dec Wind Speed: 2km/h
Wind Speed

Pasco is relatively calm, with an average annual wind speed of 3km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is June, averaging 3km/h, though still comfortable for most outdoor activities. The calmest conditions occur in January, with average winds dropping to 2km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 1km/h gap between the calmest and windiest months.

Seasons

Winter
Dec 21
Spring
Mar 20
Summer
Jun 21
Autumn
Sep 23

52 days until Autumn

It is currently summer in Pasco, which began on June 21, 2026. Pasco is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in August at around 35°C, while the coldest stretch bottoms out in December near -5°C. Autumn is next, beginning on September 23, 2026 — 52 days from now.

Spring

Temperatures range from 5 to 28°C. Rainfall is relatively light, with around 67mm over the season and a monthly average of 22mm. Winds are generally light, averaging 3km/h. Light layers work well as temperatures warm through the season — a great time to be outdoors.

Summer

Temperatures range from 16 to 35°C. Precipitation is minimal, with only around 14mm for the entire season. Winds are generally light, averaging 3km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.

Autumn

Temperatures range from 5 to 27°C. Rainfall is relatively light, with around 113mm over the season and a monthly average of 38mm. Winds are generally light, averaging 3km/h. Layered clothing works best as temperatures gradually cool — enjoy the crisp air and changing scenery.

Winter

Temperatures range from -5 to 12°C. Rainfall is relatively light, with around 105mm over the season and a monthly average of 35mm. Expect around 35cm of snow accumulation during this period. Winds are generally light, averaging 2km/h. Warm winter clothing and waterproof boots are a must, and travel may be affected by snow.

Best Time to Visit

Jan
Feb
Mar 10°
Apr 17°
May 20°
Jun 23°
Jul 26°
Aug 26°
Sep 19°
Oct 13°
Nov
Dec -2°

The best time to visit Pasco is during April, May, June and September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 20°C with modest rainfall averaging 12mm per month. By contrast, August can be uncomfortably hot with highs reaching 35°C, while December is the coldest period with lows dropping to -5°C. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.

Monthly Climate Data

The table below shows monthly climate averages for Pasco based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Snow is measured in centimetres (cm) and reflects average monthly snowfall accumulation. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.

Month
Min Temperature
Max Temperature
Wind Speed
Precipitation
Snow
Jan
-1 °C
6 °C
2 km/h
44 mm
4 cm
Feb
3 °C
12 °C
2 km/h
19 mm
0 cm
Mar
5 °C
16 °C
3 km/h
36 mm
0 cm
Apr
10 °C
26 °C
3 km/h
5 mm
0 cm
May
13 °C
28 °C
3 km/h
25 mm
0 cm
Jun
16 °C
32 °C
3 km/h
11 mm
0 cm
Jul
18 °C
34 °C
3 km/h
3 mm
0 cm
Aug Current
17 °C
35 °C
2 km/h
0 mm
0 cm
Sep
11 °C
27 °C
3 km/h
8 mm
0 cm
Oct
9 °C
18 °C
3 km/h
86 mm
0 cm
Nov
5 °C
14 °C
2 km/h
20 mm
0 cm
Dec
-5 °C
2 °C
2 km/h
42 mm
31 cm
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