Weather in Prosser, WA
Prosser, Sunday, 18 October, 23:52
Partly cloudy. Feels like 41°. High 65°, low 38°.
Monthly outlook for Prosser, WA: average high 58.6°, average low 41.9°. That is 0.8° below the climate normal for October. Precipitation is expected on 4 days (about 1.1 inches), against a normal of 3 days and 0.5 inches. The warmest day looks like 21 October (70.3°), the coolest 24 October (36.3°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 18 October – 27 October | 61.7° | 62.2° | -0.3° |
| 28 October – 6 November | 53.4° | 55.7° | -1.3° |
| 7 November – 16 November | at normal | 51.7° | — |
October records over 66 years
0
Prosser, Monday, 19 October
Overcast. High 65°, low 41°.
0Prosser, Tuesday, 20 October
Overcast. High 68°, low 40°.
0
Prosser, Wednesday, 21 October
Clear. High 70°, low 47°.
0.56
Prosser, Thursday, 22 October
Rain. High 56°, low 50°.
0Prosser, Friday, 23 October
Clear. High 57°, low 41°.
0Prosser, Saturday, 24 October
Overcast. High 55°, low 36°.
0Prosser, Sunday, 25 October
Overcast. High 63°, low 45°.
0Prosser, Monday, 26 October
Overcast. High 60°, low 45°.
0.07Prosser, Tuesday, 27 October
Light rain. High 58°, low 44°.
0.39Prosser, Wednesday, 28 October
Rain. High 54°, low 42°.
0.07Prosser, Thursday, 29 October
Light rain. High 48°, low 39°.
0Prosser, Friday, 30 October
Overcast. High 51°, low 37°.
0Prosser, Saturday, 31 October
Clear. High 54°, low 40°.
0Prosser, Sunday, 1 November
Overcast. High 58°, low 43°.
0.03Prosser, Monday, 2 November
Light rain. High 56°, low 42°.
0.02
Prosser, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.06
Prosser, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.04Prosser, Thursday, 5 November
Climate normal for this date — 60-year average.
0.05Prosser, Friday, 6 November
Climate normal for this date — 60-year average.
0.06Prosser, Saturday, 7 November
Climate normal for this date — 60-year average.
0.04Prosser, Sunday, 8 November
Climate normal for this date — 60-year average.
0.03Prosser, Monday, 9 November
Climate normal for this date — 60-year average.
0.05Prosser, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.04Prosser, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.04Prosser, Thursday, 12 November
Climate normal for this date — 60-year average.
0.05Prosser, Friday, 13 November
Climate normal for this date — 60-year average.
0.02Prosser, Saturday, 14 November
Climate normal for this date — 60-year average.
0.04Prosser, Sunday, 15 November
Climate normal for this date — 60-year average.
0.04Prosser, Monday, 16 November
Climate normal for this date — 60-year average.
About the monthly outlook
How accurate is a 30-day forecast?
The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Prosser, WA are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.
What does "above normal" mean?
We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.
Where do the 66-year records come from?
They are real temperature extremes recorded in Prosser, WA since 1960: the highest and lowest reading for each calendar date, with the year it happened.
How often is it updated?
The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.
Sun and moon today
Weather history
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