June
June · September · July
United States · 1991–2020
June leads for comfortable weather in Challenge-Brownsville: typically 24.4°C by day, 8.9°C at night, with 28 mm of rain. Based on measured 1991–2020 NOAA station history.
June · September · July
July · August · September
June · September · May
The weakest month is January, scoring 5 against June’s 88 — 386 mm of rain falls, and days reach only 10.3°C, 14° 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 | 10.3°C | -0.8°C | 386 mm | 12.2 | 9 h 40 | 5 | Strong coverage |
| February | 10.4°C | -0.8°C | 366 mm | 11.4 | 10 h 39 | 5 | Strong coverage |
| March | 12.1°C | 0.3°C | 342 mm | 11.9 | 11 h 49 | 5 | Strong coverage |
| April | 14.7°C | 1.9°C | 163 mm | 8.6 | 13 h 11 | 23 | Strong coverage |
| May | 19.5°C | 5.5°C | 102 mm | 6.2 | 14 h 19 | 56 | Strong coverage |
| June | 24.4°C | 8.9°C | 28 mm | 2.4 | 14 h 56 | 88 | Strong coverage |
| July | 28.9°C | 11.6°C | 1 mm | 0.2 | 14 h 42 | 78 | Strong coverage |
| August | 28.9°C | 10.9°C | 5 mm | 0.5 | 13 h 43 | 77 | Strong coverage |
| September | 26.4°C | 9°C | 14 mm | 1.5 | 12 h 24 | 81 | Strong coverage |
| October | 20.8°C | 5.1°C | 102 mm | 4.5 | 11 h 05 | 61 | Strong coverage |
| November | 13.7°C | 1.3°C | 223 mm | 8.3 | 9 h 57 | 10 | Strong coverage |
| December | 9.8°C | -0.9°C | 428 mm | 11.9 | 9 h 24 | 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 | 26.1°C26 Jan 2015 | -13.9°C3 Jan 1950 | 299 mm31 Jan 1963 | 1083 mm1970 · driest 6 mm in 2015 | 78 |
| February | 25.0°C13 Feb 1977 | -15.0°C13 Feb 1949 | 216 mm18 Feb 1986 | 1072 mm1986 · driest 7 mm in 2022 | 78 |
| March | 30.6°C21 Mar 2026 | -11.1°C6 Mar 1956 | 189 mm8 Mar 1986 | 914 mm1995 · driest 0 mm in 2026 | 77 |
| April | 30.0°C29 Apr 1981 | -8.3°C9 Apr 1999 | 164 mm11 Apr 1982 | 585 mm1982 · driest 16 mm in 1949 | 76 |
| May | 34.4°C28 May 1984 | -5.6°C18 May 1974 | 142 mm18 May 1957 | 355 mm2005 · driest 0 mm in 1969 | 74 |
| June | 38.3°C29 Jun 1950 | -3.9°C16 Jun 1995 | 56 mm9 Jun 2005 | 126 mm1995 · driest 0 mm in 1951 | 75 |
| July | 38.3°C18 Jul 1960 | 1.1°C1 Jul 1976 | 85 mm8 Jul 1974 | 119 mm1974 · driest 0 mm in 1954 | 76 |
| August | 38.9°C19 Aug 1950 | 2.2°C22 Aug 1968 | 41 mm11 Aug 1965 | 80 mm1976 · driest 0 mm in 1957 | 75 |
| September | 40.6°C8 Sep 2022 | -0.6°C29 Sep 2007 | 138 mm18 Sep 1959 | 288 mm1986 · driest 0 mm in 1969 | 75 |
| October | 36.1°C2 Oct 2024 | -6.1°C29 Oct 1971 | 288 mm12 Oct 1962 | 734 mm1962 · driest 0 mm in 2020 | 77 |
| November | 30.0°C5 Nov 1949 | -9.4°C29 Nov 1975 | 174 mm23 Nov 1988 | 879 mm1973 · driest 0 mm in 1959 | 77 |
| December | 24.4°C1 Dec 2021 | -15.6°C21 Dec 1990 | 295 mm22 Dec 1964 | 1374 mm1955 · driest 0 mm in 1989 | 77 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 21 | 8 | 4 |
| February | 0 | 0 | 19 | 8 | 4 |
| March | <1 | 0 | 16 | 7 | 4 |
| April | 1 | 0 | 11 | 5 | 2 |
| May | 6 | <1 | 2 | 3 | <1 |
| June | 16 | 4 | <1 | <1 | 0 |
| July | 28 | 13 | 0 | 0 | 0 |
| August | 28 | 13 | 0 | <1 | 0 |
| September | 21 | 8 | <1 | <1 | 0 |
| October | 9 | 2 | 2 | 3 | <1 |
| November | <1 | 0 | 12 | 5 | 1 |
| December | 0 | 0 | 21 | 8 | 4 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 3% | 39% | 27% | 50% | 6.3–12.9°C |
| February | 6% | 38% | 25% | 49% | 7.3–15.1°C |
| March | 10% | 37% | 24% | 44% | 8.4–15.4°C |
| April | 28% | 28% | 15% | 33% | 11.5–18.5°C |
| May | 55% | 19% | 9% | 20% | 16.8–22.9°C |
| June | 82% | 8% | 3% | 5% | 21.7–27.6°C |
| July | 98% | <1% | <1% | 0% | 26.6–31.4°C |
| August | 96% | 2% | <1% | <1% | 26.8–31.2°C |
| September | 87% | 7% | 3% | 6% | 23.8–28.5°C |
| October | 58% | 15% | 9% | 16% | 17.1–23.9°C |
| November | 17% | 30% | 20% | 40% | 9.8–16.8°C |
| December | 3% | 37% | 26% | 46% | 7.0–13.3°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