December
December · January · October
Mexico · 1991–2020
December leads for comfortable weather in Tonilco: typically 24.3°C by day, 4.1°C at night, with 6 mm of rain. Based on measured 1991–2020 NOAA station history.
December · January · October
May · April · October
January · December · November
The weakest month is July, scoring 52 against December’s 80 — 201 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 | 23.8°C | 3.5°C | 27 mm | 1.9 | 10 h 57 | 79 | Good coverage |
| February | 25.6°C | 4.5°C | 14 mm | 1.2 | 11 h 24 | 76 | Good coverage |
| March | 28.6°C | 5.9°C | 4 mm | 0.4 | 11 h 58 | 68 | Good coverage |
| April | 30.5°C | 8.2°C | 4 mm | 0.6 | 12 h 37 | 66 | Good coverage |
| May | 32.6°C | 11°C | 24 mm | 3.1 | 13 h 09 | 64 | Good coverage |
| June | 30°C | 14°C | 150 mm | 13.2 | 13 h 26 | 53 | Good coverage |
| July | 26.9°C | 13.9°C | 201 mm | 17.7 | 13 h 19 | 52 | Good coverage |
| August | 27.1°C | 13.6°C | 186 mm | 16.7 | 12 h 52 | 54 | Good coverage |
| September | 26.9°C | 13.2°C | 113 mm | 11.4 | 12 h 14 | 69 | Good coverage |
| October | 26.8°C | 10.2°C | 46 mm | 5.3 | 11 h 37 | 79 | Good coverage |
| November | 25.8°C | 6°C | 6 mm | 0.9 | 11 h 05 | 78 | Good coverage |
| December | 24.3°C | 4.1°C | 6 mm | 0.8 | 10 h 50 | 80 | Good coverage |
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 35.6°C16 Jan 1993 | -5.6°C20 Jan 1988 | 56 mm10 Jan 1992 | 305 mm1992 · driest 0 mm in 2001 | 45 |
| February | 35.0°C23 Feb 1993 | -5.0°C3 Feb 1998 | 79 mm2 Feb 2010 | 133 mm2010 · driest 0 mm in 2011 | 44 |
| March | 35.0°C31 Mar 1974 | -2.8°C20 Mar 2003 | 33 mm2 Mar 2001 | 43 mm1997 · driest 0 mm in 1991 | 44 |
| April | 36.7°C25 Apr 2002 | 1.7°C11 Apr 1995 | 29 mm30 Apr 1987 | 51 mm1997 · driest 0 mm in 1993 | 44 |
| May | 38.9°C26 May 2011 | 0.6°C4 May 1987 | 43 mm30 May 1965 | 81 mm1997 · driest 0 mm in 1970 | 45 |
| June | 38.3°C19 Jun 1969 | 5.0°C2 Jun 1993 | 67 mm20 Jun 1995 | 289 mm2004 · driest 14 mm in 1982 | 44 |
| July | 34.4°C7 Jul 2009 | 8.9°C22 Jul 1976 | 93 mm6 Jul 1976 | 469 mm1976 · driest 32 mm in 1994 | 45 |
| August | 32.8°C7 Aug 2009 | 7.8°C5 Aug 1964 | 81 mm17 Aug 1967 | 369 mm1983 · driest 87 mm in 1991 | 44 |
| September | 32.8°C12 Sep 1987 | 2.8°C27 Sep 1979 | 124 mm2 Sep 1967 | 306 mm1967 · driest 19 mm in 1963 | 42 |
| October | 32.8°C18 Oct 1996 | 0.0°C31 Oct 1990 | 46 mm14 Oct 2007 | 117 mm1990 · driest 0 mm in 1987 | 45 |
| November | 31.7°C1 Nov 2010 | -5.0°C29 Nov 2011 | 62 mm27 Nov 1982 | 82 mm1982 · driest 0 mm in 1967 | 45 |
| December | 31.7°C30 Dec 1992 | -5.0°C13 Dec 1997 | 70 mm10 Dec 1978 | 85 mm1963 · driest 0 mm in 2003 | 45 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) |
|---|---|---|---|---|
| January | 16 | <1 | 4 | <1 |
| February | 20 | 3 | 3 | <1 |
| March | 29 | 12 | <1 | <1 |
| April | 29 | 21 | 0 | <1 |
| May | 31 | 28 | 0 | <1 |
| June | 29 | 18 | 0 | 5 |
| July | 27 | 3 | 0 | 7 |
| August | 28 | 3 | 0 | 7 |
| September | 27 | 2 | 0 | 4 |
| October | 26 | 4 | 0 | 2 |
| November | 23 | 1 | 1 | <1 |
| December | 16 | <1 | 3 | <1 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 82% | 5% | 2% | 4% | 19.6–25.2°C |
| February | 90% | 4% | 1% | 2% | 21.0–27.8°C |
| March | 97% | 2% | <1% | <1% | 24.9–29.4°C |
| April | 98% | 2% | <1% | 1% | 27.1–32.1°C |
| May | 93% | 7% | 2% | 6% | 29.2–33.6°C |
| June | 64% | 36% | 16% | 53% | 27.5–31.9°C |
| July | 48% | 52% | 25% | 70% | 24.2–28.3°C |
| August | 51% | 49% | 23% | 69% | 24.4–28.4°C |
| September | 62% | 37% | 16% | 41% | 24.3–27.8°C |
| October | 83% | 15% | 6% | 10% | 23.7–27.7°C |
| November | 91% | 3% | 1% | 3% | 21.4–26.7°C |
| December | 86% | 4% | 2% | 2% | 20.5–25.8°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