September
September · July · August
United States · 1991–2020
September leads for comfortable weather in Plainview: typically 23.4°C by day, 9.4°C at night, with 107 mm of rain. Based on measured 1991–2020 NOAA station history.
September · July · August
July · August · June
May · September · October
The weakest month is January, scoring 5 against September’s 74 — days reach only -4°C, 28° below the 24°C the score treats as ideal.
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 | -4°C | -15.5°C | 24 mm | 4.9 | 9 h 13 | 5 | Strong coverage |
| February | -1.5°C | -13.9°C | 28 mm | 4.5 | 10 h 23 | 5 | Strong coverage |
| March | 5.7°C | -5.9°C | 52 mm | 6.5 | 11 h 47 | 5 | Strong coverage |
| April | 13.8°C | 0.4°C | 84 mm | 8 | 13 h 23 | 29 | Strong coverage |
| May | 21°C | 7.1°C | 113 mm | 9.9 | 14 h 44 | 59 | Strong coverage |
| June | 26.3°C | 13°C | 136 mm | 10.5 | 15 h 29 | 68 | Strong coverage |
| July | 28.4°C | 15.3°C | 106 mm | 7.5 | 15 h 11 | 71 | Strong coverage |
| August | 27.3°C | 13.9°C | 117 mm | 7.9 | 14 h 01 | 71 | Strong coverage |
| September | 23.4°C | 9.4°C | 107 mm | 7.3 | 12 h 27 | 74 | Strong coverage |
| October | 15.3°C | 2.1°C | 62 mm | 6.9 | 10 h 55 | 41 | Strong coverage |
| November | 6.1°C | -4.5°C | 49 mm | 5.4 | 9 h 33 | 5 | Strong coverage |
| December | -1.3°C | -11°C | 36 mm | 6 | 8 h 53 | 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 | 13.9°C31 Jan 2025 | -42.2°C18 Jan 1967 | 43 mm20 Jan 1988 | 62 mm2017 · driest 1 mm in 2025 | 60 |
| February | 21.1°C27 Feb 2024 | -40.0°C1 Feb 2019 | 40 mm29 Feb 2012 | 88 mm2019 · driest 0 mm in 1969 | 61 |
| March | 28.9°C29 Mar 2025 | -33.3°C8 Mar 1967 | 45 mm4 Mar 1989 | 109 mm2016 · driest 4 mm in 1994 | 61 |
| April | 35.0°C13 Apr 2023 | -18.3°C5 Apr 2018 | 66 mm12 Apr 2001 | 155 mm1991 · driest 8 mm in 1969 | 61 |
| May | 37.2°C29 May 2018 | -9.4°C10 May 1997 | 64 mm29 May 1981 | 269 mm2013 · driest 17 mm in 1992 | 60 |
| June | 39.4°C10 Jun 1985 | 0.0°C10 Jun 1972 | 84 mm8 Jun 2005 | 256 mm2024 · driest 17 mm in 2023 | 61 |
| July | 39.4°C31 Jul 1988 | 3.9°C7 Jul 1984 | 203 mm1 Jul 1978 | 333 mm1978 · driest 25 mm in 2014 | 61 |
| August | 40.0°C1 Aug 1988 | 0.0°C14 Aug 1964 | 197 mm11 Aug 2016 | 402 mm2007 · driest 11 mm in 1969 | 58 |
| September | 37.2°C7 Sep 1978 | -5.6°C27 Sep 1991 | 159 mm23 Sep 2010 | 334 mm2010 · driest 17 mm in 2022 | 59 |
| October | 34.4°C4 Oct 1997 | -13.9°C30 Oct 1988 | 139 mm15 Oct 1966 | 168 mm2009 · driest 5 mm in 1976 | 60 |
| November | 26.1°C3 Nov 2022 | -27.2°C26 Nov 1977 | 62 mm10 Nov 1975 | 215 mm1991 · driest 0 mm in 1967 | 59 |
| December | 17.8°C16 Dec 2021 | -38.9°C19 Dec 1983 | 35 mm27 Dec 1982 | 93 mm1996 · driest 4 mm in 1967 | 61 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 30 | <1 | 5 |
| February | 0 | 0 | 27 | <1 | 5 |
| March | <1 | 0 | 25 | 2 | 3 |
| April | 1 | <1 | 15 | 3 | 1 |
| May | 8 | 2 | 3 | 4 | <1 |
| June | 19 | 6 | 0 | 4 | 0 |
| July | 26 | 11 | 0 | 4 | 0 |
| August | 23 | 7 | 0 | 3 | 0 |
| September | 12 | 3 | 1 | 3 | 0 |
| October | 3 | <1 | 13 | 2 | <1 |
| November | <1 | 0 | 24 | 2 | 2 |
| December | 0 | 0 | 29 | 1 | 5 |
The best month has moved. On the 1961–1990 numbers the strongest month here was June (scoring 76); on 2011–2025 it is September (84). 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% | 2% | 9% | -7.6–-0.6°C |
| February | <1% | 14% | 2% | 8% | -4.8–3.4°C |
| March | 3% | 20% | 5% | 20% | 2.3–10.0°C |
| April | 19% | 27% | 9% | 31% | 10.9–17.8°C |
| May | 47% | 30% | 11% | 37% | 19.0–24.9°C |
| June | 65% | 32% | 14% | 41% | 24.6–29.0°C |
| July | 75% | 25% | 12% | 24% | 26.7–31.1°C |
| August | 73% | 27% | 10% | 28% | 25.8–29.4°C |
| September | 57% | 25% | 10% | 28% | 20.5–25.3°C |
| October | 24% | 20% | 6% | 19% | 12.9–18.8°C |
| November | 3% | 18% | 5% | 15% | 3.0–9.7°C |
| December | 0% | 16% | 3% | 11% | -5.2–2.1°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