January
January · December · November
Mexico · 1991–2020
January leads for comfortable weather in Negritas: typically 25.9°C by day, 7.5°C at night, with 11 mm of rain. Based on measured 1991–2020 NOAA station history.
January · December · November
October · August · September
January · December · February
The weakest month is May, scoring 59 against January’s 80 — days average 35.8°C, 12° above 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 | 25.9°C | 7.5°C | 11 mm | 1.3 | 10 h 52 | 80 | Good coverage |
| February | 27.9°C | 8.5°C | 9 mm | 1 | 11 h 22 | 76 | Good coverage |
| March | 32°C | 10.9°C | 3 mm | 0.6 | 11 h 57 | 66 | Good coverage |
| April | 34.3°C | 13°C | 13 mm | 1.5 | 12 h 39 | 62 | Good coverage |
| May | 35.8°C | 16.1°C | 35 mm | 2.9 | 13 h 13 | 59 | Good coverage |
| June | 34.8°C | 17.6°C | 25 mm | 2.9 | 13 h 31 | 60 | Good coverage |
| July | 33.7°C | 16.8°C | 41 mm | 2.7 | 13 h 24 | 64 | Good coverage |
| August | 33.3°C | 16.3°C | 25 mm | 2.4 | 12 h 55 | 67 | Good coverage |
| September | 32.1°C | 16.8°C | 57 mm | 4.3 | 12 h 15 | 66 | Good coverage |
| October | 30.6°C | 14.3°C | 27 mm | 2.1 | 11 h 35 | 77 | Good coverage |
| November | 28.5°C | 11.2°C | 10 mm | 1.4 | 11 h 01 | 78 | Good coverage |
| December | 26.8°C | 8.4°C | 4 mm | 0.7 | 10 h 45 | 79 | Good coverage |
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 38.9°C26 Jan 2003 | -3.3°C13 Jan 1975 | 35 mm30 Jan 1984 | 106 mm1992 · driest 0 mm in 1979 | 37 |
| February | 38.9°C28 Feb 2009 | -5.0°C24 Feb 1975 | 40 mm25 Feb 2005 | 65 mm2010 · driest 0 mm in 1985 | 37 |
| March | 42.8°C21 Mar 1994 | 0.0°C14 Mar 1993 | 34 mm7 Mar 1978 | 57 mm1978 · driest 0 mm in 2008 | 36 |
| April | 45.6°C19 Apr 2006 | 0.0°C1 Apr 1987 | 60 mm23 Apr 1976 | 135 mm1985 · driest 0 mm in 1991 | 38 |
| May | 47.8°C4 May 2002 | 5.0°C6 May 1976 | 60 mm16 May 1977 | 204 mm1981 · driest 0 mm in 1979 | 35 |
| June | 43.9°C9 Jun 1998 | 5.0°C22 Jun 1976 | 100 mm24 Jun 1973 | 162 mm1973 · driest 0 mm in 1987 | 34 |
| July | 43.9°C30 Jul 1973 | 7.8°C4 Jul 1981 | 121 mm2 Jul 2003 | 796 mm1990 · driest 0 mm in 1977 | 32 |
| August | 40.6°C23 Aug 1995 | 5.0°C10 Aug 1995 | 70 mm12 Aug 1978 | 126 mm2008 · driest 0 mm in 1995 | 35 |
| September | 40.6°C11 Sep 1971 | 5.0°C30 Sep 1976 | 81 mm12 Sep 1998 | 138 mm1995 · driest 0 mm in 2000 | 34 |
| October | 40.0°C5 Oct 2009 | 0.0°C16 Oct 1995 | 60 mm24 Oct 1977 | 109 mm1977 · driest 0 mm in 1985 | 34 |
| November | 38.9°C13 Nov 2007 | -2.2°C13 Nov 1974 | 37 mm1 Nov 1991 | 46 mm2000 · driest 0 mm in 1981 | 34 |
| December | 40.0°C17 Dec 2002 | -4.4°C22 Dec 1973 | 42 mm3 Dec 1979 | 104 mm1979 · driest 0 mm in 1975 | 32 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) |
|---|---|---|---|---|
| January | 20 | 8 | 1 | <1 |
| February | 21 | 12 | <1 | <1 |
| March | 28 | 21 | <1 | <1 |
| April | 28 | 24 | 0 | <1 |
| May | 30 | 27 | 0 | 1 |
| June | 29 | 26 | 0 | <1 |
| July | 29 | 27 | 0 | 1 |
| August | 28 | 26 | 0 | <1 |
| September | 28 | 23 | 0 | 1 |
| October | 28 | 21 | <1 | <1 |
| November | 25 | 14 | <1 | <1 |
| December | 21 | 9 | 1 | <1 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 84% | 5% | 2% | 4% | 21.3–28.2°C |
| February | 92% | 3% | <1% | 1% | 23.5–30.6°C |
| March | 97% | 3% | <1% | 1% | 27.8–33.5°C |
| April | 93% | 6% | 2% | 5% | 29.6–36.3°C |
| May | 89% | 11% | 5% | 11% | 31.3–38.0°C |
| June | 90% | 11% | 4% | 11% | 30.8–36.7°C |
| July | 86% | 14% | 5% | 13% | 29.5–35.3°C |
| August | 90% | 10% | 3% | 8% | 29.3–34.8°C |
| September | 86% | 14% | 5% | 11% | 29.5–33.3°C |
| October | 92% | 7% | 3% | 4% | 27.4–32.3°C |
| November | 93% | 5% | <1% | 2% | 25.7–30.1°C |
| December | 90% | 4% | 1% | 2% | 24.2–28.6°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