Prosser, Washington Climate
United States
Pop. 5,869 Elev. 203 m / 666 ft
TZ: America/Los_Angeles (UTC-7) ·
Prosser has a dry climate with hot summers reaching 97°F (36°C) in July and cold winters averaging 26°F (-3°C) in January. Rain falls on about 12 days per year (9.3 in / 236 mm total), with 6 in (141 mm) of annual snowfall. The city averages 156 sunny days per year. Nearby lake water reaches 75°F (24°C) in summer.
| Temperature | 97°F (36°C) high | 26°F (-4°C) low |
| Feels like | 26°F (-4°C) low | |
| Rain | 12 days | 9.3 in (236 mm) /yr |
| Snow | 0 days | 5.6 in (141 mm) /yr |
| Sky | 156 sunny | 2 stormy |
| Wind | 2.8 mph (1.3 m/s) avg |
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Explore on the MapMonthly Climate Chart
Best months to visit: Apr, May, Oct
Sky & Air by Month
Cloud cover (%)
50
Jan 63
Feb 71
Mar 41
Apr 45
May 32
Jun 24
Jul 36
Aug 27
Sep 43
Oct 72
Nov 70
Dec Humidity (%)
80
Jan 72
Feb 57
Mar 28
Apr 27
May 25
Jun 25
Jul 28
Aug 35
Sep 56
Oct 79
Nov 79
Dec Weather Days by Month
Water Temperatures
Cities with Similar Climate
Find similar cities on the map →Nearby Cities
Nearby
Commercial airport 31 mi Tri Cities Airport (PSC)
Ski resort 80 mi Mission Ridge
National park 28 mi Hanford Reach National Monument
Mountain peak
(5,440 ft) 51 mi Simcoe Mountain
Hospital 0 mi Prosser Memorial Hospital
Hiking trail 16 mi
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Monthly Weather Data
↑ See chart| Month | Avg High | Avg Low | Rainfall | Snowfall | Sunny Days |
|---|---|---|---|---|---|
| January | 42°F 5°C | 26°F -4°C | 1.1 in 27 mm | 0.4 in11 mm | 13 |
| February | 45°F 7°C | 31°F -1°C | 1.0 in 25 mm | 5.0 in126 mm | 7 |
| March | 60°F 16°C | 41°F 5°C | 1.2 in 31 mm | — | 4 |
| April | 72°F 22°C | 45°F 7°C | 0.5 in 12 mm | — | 19 |
| May | 80°F 27°C | 53°F 12°C | 0.3 in 6 mm | — | 14 |
| June | 90°F 32°C | 60°F 16°C | 0.0 in 1 mm | — | 17 |
| July | 97°F 36°C | 66°F 19°C | 0.3 in 7 mm | — | 25 |
| August | 95°F 35°C | 66°F 19°C | 0.2 in 6 mm | — | 20 |
| September | 89°F 32°C | 59°F 15°C | 0.2 in 5 mm | — | 17 |
| October | 66°F 19°C | 43°F 6°C | 0.8 in 19 mm | — | 14 |
| November | 53°F 12°C | 38°F 3°C | 1.5 in 37 mm | 0.0 in1 mm | 2 |
| December | 49°F 10°C | 35°F 2°C | 2.3 in 59 mm | 0.1 in4 mm | 4 |
Weather Days by Month
↑ See chart| Month | Sunny Days | Storm Days |
|---|---|---|
| January | 13 | 0 |
| February | 7 | 0 |
| March | 4 | 0 |
| April | 19 | 0 |
| May | 14 | 0 |
| June | 17 | 0 |
| July | 25 | 1 |
| August | 20 | 0 |
| September | 17 | 0 |
| October | 14 | 1 |
| November | 2 | 0 |
| December | 4 | 0 |
Water Temperatures Data
↑ See chart| Month | Lake Avg High |
|---|---|
| January | 40°F 5°C |
| February | 38°F 3°C |
| March | 40°F 4°C |
| April | 45°F 7°C |
| May | 56°F 13°C |
| June | 67°F 19°C |
| July | 75°F 24°C |
| August | 75°F 24°C |
| September | 73°F 23°C |
| October | 58°F 15°C |
| November | 50°F 10°C |
| December | 45°F 7°C |