October
October · May · June
United States · 1991–2020
October leads for comfortable weather in Alta Sierra Estates: typically 24°C by day, 9°C at night, with 54 mm of rain. Based on measured 1991–2020 NOAA station history.
October · May · June
June · September · July
May · October · April
The weakest month is December, scoring 5 against October’s 86 — days reach only 11.9°C, 12° below the 24°C the score treats as ideal, and 217 mm of rain falls.
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°C | 2.3°C | 186 mm | 10 | 9 h 42 | 13 | Strong coverage |
| February | 13.8°C | 2.7°C | 203 mm | 10.2 | 10 h 40 | 14 | Strong coverage |
| March | 15.8°C | 3.8°C | 181 mm | 9.8 | 11 h 50 | 26 | Strong coverage |
| April | 18.6°C | 5.4°C | 91 mm | 6.7 | 13 h 10 | 54 | Strong coverage |
| May | 23.5°C | 9.1°C | 48 mm | 4.4 | 14 h 17 | 85 | Strong coverage |
| June | 28.7°C | 12.9°C | 18 mm | 1.7 | 14 h 54 | 81 | Strong coverage |
| July | 33.4°C | 16.4°C | 1 mm | 0.1 | 14 h 40 | 66 | Strong coverage |
| August | 33°C | 15.7°C | 2 mm | 0.3 | 13 h 42 | 69 | Strong coverage |
| September | 30.2°C | 13.5°C | 9 mm | 1 | 12 h 24 | 77 | Strong coverage |
| October | 24°C | 9°C | 54 mm | 3.3 | 11 h 06 | 86 | Strong coverage |
| November | 16.1°C | 4.5°C | 133 mm | 7.7 | 9 h 59 | 37 | Strong coverage |
| December | 11.9°C | 1.9°C | 217 mm | 10.2 | 9 h 26 | 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 | 28.9°C14 Jan 2014 | -15.6°C3 Jan 1906 | 137 mm21 Jan 1967 | 746 mm1911 · driest 0 mm in 2015 | 116 |
| February | 31.1°C7 Feb 1906 | -9.4°C7 Feb 1989 | 152 mm8 Feb 1960 | 629 mm1986 · driest 1 mm in 2020 | 119 |
| March | 31.7°C8 Mar 1905 | -11.1°C25 Mar 1913 | 117 mm16 Mar 2012 | 507 mm1989 · driest 2 mm in 1926 | 118 |
| April | 32.8°C20 Apr 1931 | -6.7°C16 Apr 1917 | 99 mm8 Apr 1935 | 319 mm1948 · driest 0 mm in 1939 | 117 |
| May | 37.8°C31 May 2001 | -3.3°C28 May 1927 | 118 mm18 May 1957 | 225 mm1957 · driest 0 mm in 2001 | 117 |
| June | 43.3°C13 Jun 1908 | -1.1°C3 Jun 1944 | 56 mm15 Jun 1929 | 89 mm1967 · driest 0 mm in 1946 | 119 |
| July | 45.0°C14 Jul 1972 | 4.4°C4 Jul 1964 | 58 mm8 Jul 1974 | 90 mm1974 · driest 0 mm in 1952 | 117 |
| August | 43.3°C14 Aug 1933 | 3.3°C22 Aug 1906 | 32 mm15 Aug 1976 | 55 mm1976 · driest 0 mm in 1973 | 118 |
| September | 41.1°C2 Sep 2017 | -1.1°C21 Sep 1925 | 67 mm13 Sep 1918 | 141 mm1918 · driest 0 mm in 1932 | 115 |
| October | 38.9°C1 Oct 2012 | -4.4°C22 Oct 1906 | 255 mm13 Oct 1962 | 543 mm1962 · driest 0 mm in 2022 | 119 |
| November | 30.0°C7 Nov 1941 | -7.8°C24 Nov 1906 | 130 mm21 Nov 1950 | 467 mm1950 · driest 0 mm in 1959 | 120 |
| December | 30.6°C14 Dec 1924 | -12.8°C10 Dec 1972 | 162 mm22 Dec 1964 | 671 mm1996 · driest 0 mm in 1989 | 121 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | <1 | 0 | 9 | 6 | <1 |
| February | <1 | 0 | 8 | 6 | 1 |
| March | 2 | 0 | 5 | 6 | 1 |
| April | 5 | <1 | 2 | 3 | <1 |
| May | 13 | 4 | <1 | 2 | 0 |
| June | 23 | 14 | 0 | <1 | 0 |
| July | 30 | 25 | 0 | 0 | 0 |
| August | 30 | 26 | 0 | <1 | 0 |
| September | 25 | 18 | 0 | <1 | 0 |
| October | 15 | 5 | <1 | 2 | 0 |
| November | 2 | 0 | 4 | 4 | <1 |
| December | 0 | 0 | 9 | 6 | <1 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 9% | 33% | 20% | 39% | 9.1–15.6°C |
| February | 12% | 35% | 22% | 40% | 10.5–17.0°C |
| March | 24% | 32% | 19% | 38% | 12.3–19.1°C |
| April | 46% | 21% | 10% | 21% | 15.9–22.2°C |
| May | 72% | 13% | 5% | 11% | 20.2–26.0°C |
| June | 92% | 5% | 2% | 2% | 25.6–31.1°C |
| July | 100% | <1% | <1% | 0% | 30.8–35.6°C |
| August | 99% | 1% | <1% | <1% | 30.0–34.4°C |
| September | 93% | 5% | 2% | 3% | 26.0–31.6°C |
| October | 74% | 12% | 6% | 11% | 20.5–27.1°C |
| November | 31% | 26% | 15% | 30% | 13.2–20.8°C |
| December | 8% | 31% | 20% | 36% | 9.7–16.1°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