Moses Lake climate — normals and trends
Moses Lake (United States) has a hot-summer mediterranean continental climate (Dsa) under the Köppen-Geiger classification. Its mean annual temperature is 11.4 °C and it receives 269 mm of precipitation per year.
These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.
The warmest month is July (24.8 °C on average) and the coldest is January (-1.9 °C). Rainfall peaks in December.
Moses Lake averages 87 frost days, 55 hot days (≥ 30 °C) and 65 rainy days per year.
Moses Lake has warmed by +2.5 °C between 1940 and 2025, or +0.29 °C per decade. This trend is statistically significant.
The number of frost days there went from about 105 to 69 per year over the period.
The hottest day of the period reached 46.7 °C (on 29 June 2021) and the coldest -32.1 °C (on 30 December 1968).
Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.
Climate normals · ERA5
Moses LakeWashington
- coords
- 47.13°, -119.28°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
11.4°C
Average daily high
16.6°C
Average daily low
6.4°C
Annual rainfall
269mm
Sunshine / day
10.0h
Mean relative humidity
57%
Average peak wind
16.8km/h
Seasonal range
26.7°C
Frost days (< 0 °C)
87 d/yr
Hot days (≥ 30 °C)
55 d/yr
Rainy days (≥ 1 mm)
65 d/yr
Annual snowfall
36.1 cm
Average feels-like high
13.5 °C
Average feels-like low
3.1 °C
Average peak gust
30.9 km/h
Tropical nights (≥ 20 °C)
15 d/yr
Solar radiation
16.0 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.5 °C
since 1940
+0.3 °C per decade · r² = 0.48 · p = < 0.001
Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).
A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.
Records for the period
Hottest day
46.7 °C
29 June 2021
Coldest day
-32.1 °C
30 December 1968
Wettest day
28 mm
19 November 1996
Windiest day
50.9 km/h
20 January 1993
Strongest gust
89.6 km/h
3 May 2010
Hottest feels-like
45.7 °C
29 June 2021
Coldest feels-like
-37.4 °C
30 December 1968
Snowiest day
18.3 cm
19 November 1996
Sunniest day
15.7 h
23 June 2025
Normals computed over complete calendar years 1940–2025.
A specific year
Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?
Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 2.9 °C | +1.6 °C | 28 mm | -9 mm |
| Feb | 4.8 °C | -1.1 °C | 35 mm | +9 mm |
| Mar | 13.6 °C | +2.1 °C | 30 mm | +5 mm |
| Apr | 19.6 °C | +2.5 °C | 8 mm | -11 mm |
| May | 24.4 °C | +1.6 °C | 9 mm | -10 mm |
| Jun | 29.7 °C | +2.9 °C | 0 mm | -14 mm |
| Jul | 32.8 °C | +1.1 °C | 2 mm | -3 mm |
| Aug | 32.2 °C | +1.7 °C | 10 mm | +4 mm |
| Sep | 28.8 °C | +3.6 °C | 5 mm | -6 mm |
| Oct | 16.2 °C | -0.4 °C | 28 mm | +5 mm |
| Nov | 9.4 °C | +2.0 °C | 54 mm | +14 mm |
| Dec | 6.9 °C | +4.8 °C | 63 mm | +21 mm |
The year's extremes
What was the weather like that day?
Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.
Frequently asked questions
What is the climate of Moses Lake?
Moses Lake has a hot-summer mediterranean continental climate (Köppen Dsa). Over 1940-2025, the average annual temperature is 11.4 °C and it receives 269 mm of precipitation per year.
What is the hottest day ever recorded in Moses Lake?
The hottest day measured in Moses Lake between 1940 and 2025 was 29 June 2021, reaching 46.7 °C.
What is the coldest day in Moses Lake?
The coldest day measured in Moses Lake between 1940 and 2025 was 30 December 1968, at -32.1 °C.
Does it snow in Moses Lake?
Yes. Moses Lake gets on average 36.1 cm of snow per year and has around 87 frost days.
Has the climate of Moses Lake warmed?
Yes: Moses Lake warmed by +2.5 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Moses Lake?
The wettest day measured in Moses Lake between 1940 and 2025 was 19 November 1996, with 28 mm of rain in 24 hours.
What was the windiest day in Moses Lake?
The windiest day measured in Moses Lake between 1940 and 2025 was 20 January 1993, with winds reaching 50.9 km/h.
What is the warmest month in Moses Lake?
The warmest month in Moses Lake is July (24.8 °C on average); the coldest is January (-1.9 °C).
How much does it rain in Moses Lake?
Moses Lake receives on average 269 mm of precipitation per year, spread over about 65 rainy days.
Is it sunny in Moses Lake?
Moses Lake gets on average 10.0 hours of sunshine per day, roughly 3,650 hours per year over 1940-2025.
What is the biggest single-day snowfall in Moses Lake?
The heaviest 24-hour snowfall measured in Moses Lake between 1940 and 2025 was 19 November 1996, with 18.3 cm.
Are there tropical nights in Moses Lake?
Yes: Moses Lake has on average 15 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Moses Lake?
In Moses Lake, between 1940 and 2025, the highest apparent temperature reached 45.7 °C on 29 June 2021, and the lowest was -37.4 °C on 30 December 1968.
Compare Moses Lake with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Moses Lake