October
October · April · September
United States · 1991–2020
October leads for comfortable weather in Pleasant Hill: typically 24.7°C by day, 8.3°C at night, with 45 mm of rain. Based on measured 1991–2020 NOAA station history.
October · April · September
August · July · September
March · November · October
The weakest month is January, scoring 33 against October’s 83 — days reach only 13.3°C, 11° below the 24°C the score treats as ideal, and nights drop to -2.6°C.
Month by month
The bars show the comfort score. Day and night temperatures come from daily observed highs and lows; rain is the historical monthly estimate.
| Month | Day | Night | Rain | Wet days | Daylight | Comfort | Coverage |
|---|---|---|---|---|---|---|---|
| January | 13.3°C | -2.6°C | 18 mm | 2.3 | 10 h 11 | 33 | Strong coverage |
| February | 15.9°C | -1.3°C | 19 mm | 2.9 | 10 h 57 | 44 | Strong coverage |
| March | 20.5°C | 2.6°C | 31 mm | 3.2 | 11 h 53 | 66 | Strong coverage |
| April | 25°C | 6.5°C | 30 mm | 2.4 | 12 h 57 | 81 | Strong coverage |
| May | 28.9°C | 12°C | 54 mm | 4.6 | 13 h 50 | 74 | Strong coverage |
| June | 33.4°C | 17.1°C | 57 mm | 4.8 | 14 h 19 | 61 | Strong coverage |
| July | 33.6°C | 18.7°C | 64 mm | 4.6 | 14 h 08 | 56 | Strong coverage |
| August | 33°C | 18.1°C | 60 mm | 4.5 | 13 h 22 | 60 | Strong coverage |
| September | 29.4°C | 14.4°C | 70 mm | 5 | 12 h 20 | 75 | Strong coverage |
| October | 24.7°C | 8.3°C | 45 mm | 4.1 | 11 h 18 | 83 | Strong coverage |
| November | 18.1°C | 1.8°C | 24 mm | 2.6 | 10 h 25 | 57 | Strong coverage |
| December | 13.6°C | -2.3°C | 20 mm | 2.6 | 9 h 59 | 34 | Strong coverage |
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 28.3°C17 Jan 2000 | -18.9°C26 Jan 2026 | 22 mm28 Jan 2010 | 54 mm2017 · driest 0 mm in 2011 | 36 |
| February | 31.7°C12 Feb 2017 | -18.9°C15 Feb 2021 | 45 mm4 Feb 2010 | 86 mm2004 · driest 0 mm in 2019 | 37 |
| March | 39.4°C23 Mar 2026 | -13.3°C6 Mar 1989 | 70 mm17 Mar 1999 | 115 mm2007 · driest 0 mm in 2023 | 36 |
| April | 36.7°C26 Apr 2012 | -6.7°C6 Apr 1994 | 108 mm4 Apr 2004 | 154 mm2004 · driest 0 mm in 2020 | 36 |
| May | 41.7°C24 May 2000 | -1.7°C3 May 2013 | 90 mm5 May 2015 | 215 mm1987 · driest 0 mm in 2020 | 37 |
| June | 45.0°C27 Jun 1994 | 7.8°C10 Jun 2020 | 74 mm23 Jun 1986 | 175 mm1986 · driest 0 mm in 1994 | 37 |
| July | 42.8°C3 Jul 1989 | 12.8°C9 Jul 1992 | 134 mm17 Jul 2013 | 225 mm2013 · driest 5 mm in 2001 | 37 |
| August | 42.8°C27 Aug 2019 | 11.1°C27 Aug 2010 | 93 mm30 Aug 2016 | 187 mm2016 · driest 1 mm in 2011 | 37 |
| September | 40.0°C9 Sep 2023 | 2.8°C24 Sep 2000 | 143 mm27 Sep 2004 | 279 mm2004 · driest 0 mm in 2000 | 37 |
| October | 37.2°C11 Oct 2020 | -9.4°C30 Oct 1993 | 100 mm22 Oct 2015 | 209 mm2015 · driest 0 mm in 2024 | 36 |
| November | 31.1°C2 Nov 2016 | -13.3°C26 Nov 1993 | 48 mm16 Nov 2004 | 132 mm2004 · driest 0 mm in 2005 | 35 |
| December | 28.3°C23 Dec 2025 | -17.2°C24 Dec 2004 | 37 mm21 Dec 1986 | 84 mm1991 · driest 0 mm in 2003 | 36 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | <1 | 0 | 23 | <1 | <1 |
| February | 3 | <1 | 17 | <1 | <1 |
| March | 9 | 1 | 9 | <1 | <1 |
| April | 18 | 6 | 2 | <1 | 0 |
| May | 25 | 15 | <1 | 2 | 0 |
| June | 29 | 25 | 0 | 2 | 0 |
| July | 30 | 27 | 0 | 2 | 0 |
| August | 30 | 26 | 0 | 2 | 0 |
| September | 26 | 16 | 0 | 2 | 0 |
| October | 18 | 6 | 1 | 1 | 0 |
| November | 5 | <1 | 11 | <1 | <1 |
| December | <1 | 0 | 23 | <1 | 1 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 18% | 7% | 2% | 4% | 10.2–15.8°C |
| February | 33% | 10% | 2% | 6% | 13.0–19.6°C |
| March | 59% | 9% | 2% | 6% | 18.5–23.1°C |
| April | 79% | 8% | 3% | 5% | 23.5–27.2°C |
| May | 81% | 15% | 6% | 16% | 26.6–32.2°C |
| June | 85% | 15% | 6% | 12% | 31.0–35.5°C |
| July | 86% | 14% | 6% | 11% | 31.0–36.2°C |
| August | 85% | 15% | 6% | 11% | 30.9–36.2°C |
| September | 83% | 16% | 7% | 13% | 27.3–31.9°C |
| October | 76% | 13% | 4% | 10% | 23.1–27.2°C |
| November | 46% | 9% | 3% | 6% | 15.3–21.4°C |
| December | 20% | 8% | 2% | 4% | 11.2–16.1°C |
A warm and dry day reaches 20°C with under 1 mm of rain; a wet day gets 1 mm or more; a washout gets 10 mm or more. The week column is the share of seven-day stretches in that month, across the station’s whole daily record, that contained three or more wet days — the odds a week-long trip is rained on repeatedly, counted rather than modelled. The last column is the 10th to 90th percentile of that month’s daytime average across individual years: a narrow band means the average is what you will get, a wide one means the average is a midpoint between years that felt quite different.
The evidence behind this page