Weather in Prosser, WA
Prosser, Saturday, 17 October, 08:10
Overcast. Feels like 41°. High 71°, low 41°.
Monthly outlook for Prosser, WA: average high 59.2°, average low 44.4°. That is 0.7° below the climate normal for October. Precipitation is expected on 3 days (about 0.5 inches), against a normal of 3 days and 0.5 inches. The warmest day looks like 17 October (71.1°), the coolest 18 October (36.6°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 17 October – 26 October | 63.4° | 62.9° | +0.3° |
| 27 October – 5 November | 52.2° | 56.2° | -2.2° |
| 6 November – 15 November | at normal | 52.1° | — |
October records over 66 years
0
Prosser, Sunday, 18 October
Clear. High 67°, low 37°.
0Prosser, Monday, 19 October
Overcast. High 60°, low 48°.
0
Prosser, Tuesday, 20 October
Mostly clear. High 68°, low 46°.
0Prosser, Wednesday, 21 October
Mostly clear. High 70°, low 49°.
0
Prosser, Thursday, 22 October
Partly cloudy. High 68°, low 48°.
0Prosser, Friday, 23 October
Overcast. High 63°, low 46°.
0.22
Prosser, Saturday, 24 October
Light rain. High 51°, low 47°.
0Prosser, Sunday, 25 October
Overcast. High 59°, low 44°.
0.16Prosser, Monday, 26 October
Rain. High 57°, low 47°.
0Prosser, Tuesday, 27 October
Partly cloudy. High 57°, low 47°.
0Prosser, Wednesday, 28 October
Overcast. High 56°, low 47°.
0Prosser, Thursday, 29 October
Overcast. High 53°, low 43°.
0Prosser, Friday, 30 October
Mostly clear. High 52°, low 37°.
0.08Prosser, Saturday, 31 October
Light rain. High 50°, low 44°.
0.02Prosser, Sunday, 1 November
Light rain. High 46°, low 40°.
0.03Prosser, Monday, 2 November
Climate normal for this date — 60-year average.
0.02Prosser, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.06Prosser, 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.
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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