Pasco weather in October: Pasco, Washington: normal highs, lows, rain and records for October
Pasco in October has a normal high of 66°F and a normal low of 38°F, a daily mean of 52°F, falling from 74°F on the 1st to 57°F by the 31st. Measurable precipitation falls on 6 days in a normal October, 0.66 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 19°C and low of 4°C, 17 mm of precipitation in October.
- NOAA stationPasco Tri Cities Airport
- Station IDUSW00024163
- Location46.27°N 119.12°W
- Elevation407 ft (124 m)
- Population81,724
- Jan 41° 28°
- Feb 49° 28°
- Mar 59° 33°
- Apr 67° 38°
- May 77° 46°
- Jun 83° 53°
- Jul 93° 57°
- Aug 91° 56°
- Sep 81° 48°
- Oct 66° 38°
- Nov 50° 32°
- Dec 41° 27°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Pasco in October?
The normal high is 66°F and the normal low 38°F, for a daily mean of 52.1°F. October is 12.1°F cooler than September and 11.2°F warmer than November. October is the 7th warmest month of the year in Pasco and the 6th wettest. Across the month the normal high falls 17°F, from 74°F on October 1 to 57°F on October 31. From one year to the next October's mean temperature typically moves about 2.4°F either way (NOAA's standard deviation), so roughly two Octobers in three average between 50°F and 55°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 26%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| October 1 | 74°F | 43°F | 14% | 5% |
| October 8 | 70°F | 41°F | 17% | 6% |
| October 15 | 66°F | 39°F | 20% | 7% |
| October 22 | 62°F | 37°F | 22% | 7% |
| October 31 | 57°F | 35°F | 26% | 7% |
Every day of October: normal high, low and chance of precipitation (warmest afternoon October 1, coldest night October 31)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| October 1 | 74°F | 43°F | 14% | 5% | 11 h 50 min |
| October 2 | 74°F | 43°F | 15% | 5% | 11 h 40 min |
| October 3 | 73°F | 42°F | 15% | 5% | 11 h 40 min |
| October 4 | 73°F | 42°F | 15% | 5% | 11 h 40 min |
| October 5 | 72°F | 42°F | 16% | 5% | 11 h 30 min |
| October 6 | 71°F | 41°F | 16% | 6% | 11 h 30 min |
| October 7 | 71°F | 41°F | 16% | 6% | 11 h 30 min |
| October 8 | 70°F | 41°F | 17% | 6% | 11 h 20 min |
| October 9 | 70°F | 40°F | 17% | 6% | 11 h 20 min |
| October 10 | 69°F | 40°F | 18% | 6% | 11 h 20 min |
| October 11 | 69°F | 40°F | 18% | 6% | 11 h 10 min |
| October 12 | 68°F | 39°F | 18% | 6% | 11 h 10 min |
| October 13 | 68°F | 39°F | 19% | 7% | 11 h 10 min |
| October 14 | 67°F | 39°F | 19% | 7% | 11 h |
| October 15 | 66°F | 39°F | 20% | 7% | 11 h |
| October 16 | 66°F | 38°F | 20% | 7% | 11 h |
| October 17 | 65°F | 38°F | 20% | 7% | 10 h 50 min |
| October 18 | 65°F | 38°F | 21% | 7% | 10 h 50 min |
| October 19 | 64°F | 37°F | 21% | 7% | 10 h 50 min |
| October 20 | 64°F | 37°F | 21% | 7% | 10 h 40 min |
| October 21 | 63°F | 37°F | 22% | 7% | 10 h 40 min |
| October 22 | 62°F | 37°F | 22% | 7% | 10 h 40 min |
| October 23 | 62°F | 36°F | 23% | 7% | 10 h 40 min |
| October 24 | 61°F | 36°F | 23% | 7% | 10 h 30 min |
| October 25 | 61°F | 36°F | 23% | 7% | 10 h 30 min |
| October 26 | 60°F | 36°F | 24% | 7% | 10 h 30 min |
| October 27 | 60°F | 35°F | 24% | 7% | 10 h 20 min |
| October 28 | 59°F | 35°F | 25% | 7% | 10 h 20 min |
| October 29 | 59°F | 35°F | 25% | 7% | 10 h 20 min |
| October 30 | 58°F | 35°F | 25% | 7% | 10 h 10 min |
| October 31 | 57°F | 35°F | 26% | 7% | 10 h 10 min |
- Normal high
- 66°FOctober average
- Normal low
- 38°FOctober average
- Precipitation
- 0.66 inmonth total
- Days with precipitation
- 60.01 inch or more
- Nights at 32°F or colder
- 8
- Daylight
- 11 h 50 min to 10 h 10 minOctober 1 to October 31
- Days at 70°F or more
- 9
- Days at 80°F or more
- 2
- Sunshine
- 79%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00024163; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Pasco in October?
On a given October day the chance of 0.01 inch or more is 20% on average, highest around October 31 (26%). In all, 0.66 in falls on 6 days of a normal October.
In a normal October in Pasco, 8 nights fall to freezing.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00024163.
What are the records for October in Pasco?
The warmest October temperature on this station's record (since 1945) is 90°F, on October 6, 2020; the coldest is 9°F, on October 31, 2002. The wettest October brought 2.58 in (2016).
The October mean against the 1991-2020 normal of 52.1°F: 2021 54.2°F (+2.1), 2022 58.2°F (+6.1), 2023 53.8°F (+1.7), 2024 53.6°F (+1.5), 2025 51.5°F (−0.6). 4 of 5 ran warmer than normal.
| October | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 54.2°F | +2.1°F | 0.88 in |
| 2022 | 58.2°F | +6.1°F | 0.74 in |
| 2023 | 53.8°F | +1.7°F | 0.74 in |
| 2024 | 53.6°F | +1.5°F | 0.38 in |
| 2025 | 51.5°F | −0.6°F | 0.71 in |
Source: records: ACIS, station USW00024163; recent months: ACIS, station USW00024163. Records and recent months use complete months only.
How does October in Pasco compare across Washington?
Across the 96 places PlainClimate covers in Washington, October normal highs run from 56°F in Easton to 66°F in Kennewick; Pasco's is 66°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.