July
July · August · June
United States · 1991–2020
July leads for comfortable weather in Oakley: typically 27.2°C by day, 6.3°C at night, with 13 mm of rain. Based on measured 1991–2020 NOAA station history.
July · August · June
July · August · June
June · September · August
The weakest month is January, scoring 5 against July’s 74 — days reach only -1.5°C, 25° below the 24°C the score treats as ideal, and nights drop to -16.1°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 | -1.5°C | -16.1°C | 17 mm | 3.8 | 9 h 27 | 5 | Strong coverage |
| February | -0.2°C | -15.4°C | 14 mm | 3.1 | 10 h 31 | 5 | Strong coverage |
| March | 5°C | -10.3°C | 13 mm | 2.9 | 11 h 48 | 5 | Strong coverage |
| April | 10.3°C | -5.5°C | 17 mm | 2.9 | 13 h 17 | 18 | Strong coverage |
| May | 16.2°C | -0.4°C | 34 mm | 4.9 | 14 h 31 | 45 | Strong coverage |
| June | 22.1°C | 3°C | 23 mm | 3.2 | 15 h 11 | 72 | Strong coverage |
| July | 27.2°C | 6.3°C | 13 mm | 2.3 | 14 h 55 | 74 | Strong coverage |
| August | 26.4°C | 5.2°C | 21 mm | 3 | 13 h 51 | 74 | Strong coverage |
| September | 21.1°C | 0.7°C | 23 mm | 3.8 | 12 h 26 | 64 | Strong coverage |
| October | 13.1°C | -4.7°C | 22 mm | 3.5 | 11 h 00 | 28 | Strong coverage |
| November | 4.9°C | -10.2°C | 16 mm | 3.6 | 9 h 46 | 5 | Strong coverage |
| December | -1.2°C | -15.8°C | 16 mm | 4 | 9 h 09 | 5 | Strong coverage |
What has changed
Each bar compares the 2011–2025 daytime average for that month against the same month in 1961–1990, measured at the same station. Months where the older record is too thin to compare are left blank.
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 12.8°C11 Jan 1953 | -36.1°C12 Jan 1963 | 32 mm25 Jan 1954 | 64 mm2017 · driest 0 mm in 2023 | 84 |
| February | 14.4°C27 Feb 1970 | -39.4°C5 Feb 1982 | 40 mm18 Feb 1986 | 79 mm1986 · driest 0 mm in 2002 | 83 |
| March | 20.6°C31 Mar 2015 | -31.7°C1 Mar 1996 | 30 mm31 Mar 2017 | 59 mm2017 · driest 0 mm in 2023 | 84 |
| April | 25.0°C28 Apr 1987 | -23.9°C6 Apr 2023 | 59 mm1 Apr 2023 | 137 mm2023 · driest 0 mm in 1998 | 80 |
| May | 30.6°C20 May 1954 | -13.9°C13 May 1983 | 31 mm27 May 1964 | 112 mm2016 · driest 0 mm in 1934 | 84 |
| June | 36.7°C23 Jun 1954 | -7.2°C11 Jun 2002 | 33 mm9 Jun 2010 | 115 mm1998 · driest 0 mm in 2012 | 81 |
| July | 37.2°C12 Jul 1990 | -3.3°C4 Jul 1902 | 39 mm29 Jul 1936 | 79 mm1937 · driest 0 mm in 2016 | 84 |
| August | 36.7°C4 Aug 1902 | -6.1°C27 Aug 1992 | 49 mm1 Aug 2021 | 103 mm1983 · driest 1 mm in 1967 | 84 |
| September | 34.4°C8 Sep 2022 | -15.0°C21 Sep 1983 | 49 mm27 Sep 2014 | 116 mm1982 · driest 0 mm in 2004 | 82 |
| October | 28.9°C8 Oct 1952 | -28.3°C29 Oct 2019 | 34 mm19 Oct 1979 | 61 mm1949 · driest 0 mm in 1978 | 79 |
| November | 20.0°C3 Nov 2020 | -32.8°C16 Nov 1955 | 25 mm4 Nov 1957 | 78 mm1983 · driest 0 mm in 2014 | 83 |
| December | 17.8°C3 Dec 1998 | -39.4°C22 Dec 1990 | 26 mm9 Dec 1985 | 82 mm1983 · driest 0 mm in 1976 | 83 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 30 | <1 | 4 |
| February | 0 | 0 | 27 | <1 | 4 |
| March | 0 | 0 | 30 | <1 | 3 |
| April | <1 | 0 | 28 | <1 | 2 |
| May | 1 | <1 | 17 | 1 | <1 |
| June | 11 | 2 | 6 | <1 | 0 |
| July | 24 | 9 | <1 | <1 | 0 |
| August | 23 | 5 | 2 | <1 | 0 |
| September | 8 | <1 | 14 | <1 | <1 |
| October | <1 | 0 | 27 | <1 | 1 |
| November | 0 | 0 | 29 | <1 | 3 |
| December | 0 | 0 | 31 | <1 | 4 |
The best month has moved. On the 1961–1990 numbers the strongest month here was August (scoring 76); on 2011–2025 it is June (77). Both are scored the same way, from the same station — only the climate underneath changed.
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 0% | 14% | <1% | 10% | -4.1–1.6°C |
| February | 0% | 13% | <1% | 7% | -2.8–3.7°C |
| March | <1% | 11% | <1% | 7% | 1.3–7.3°C |
| April | 7% | 13% | 2% | 9% | 7.7–14.0°C |
| May | 35% | 17% | 3% | 14% | 14.4–19.8°C |
| June | 70% | 13% | 2% | 10% | 19.6–26.2°C |
| July | 89% | 10% | 2% | 7% | 25.8–29.9°C |
| August | 85% | 12% | 2% | 9% | 24.8–28.6°C |
| September | 64% | 13% | 2% | 11% | 18.3–23.9°C |
| October | 17% | 11% | 2% | 8% | 10.8–17.5°C |
| November | 0% | 13% | 1% | 9% | 1.4–8.7°C |
| December | 0% | 14% | <1% | 9% | -3.1–2.9°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