April
April · October · May
United States · 1991–2020
April leads for comfortable weather in Northlake: typically 24.2°C by day, 11.2°C at night, with 83 mm of rain. Based on measured 1991–2020 NOAA station history.
April · October · May
September · June · July
November · March · April
The weakest month is January, scoring 37 against April’s 83 — days reach only 13.7°C, 10° below the 24°C the score treats as ideal, and nights drop to 0.4°C.
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 | 13.7°C | 0.4°C | 51 mm | 4 | 10 h 11 | 37 | Good coverage |
| February | 15.5°C | 2.7°C | 62 mm | 4.9 | 10 h 57 | 44 | Good coverage |
| March | 20.1°C | 7.3°C | 85 mm | 5.8 | 11 h 53 | 64 | Good coverage |
| April | 24.2°C | 11.2°C | 83 mm | 5.4 | 12 h 57 | 83 | Good coverage |
| May | 28.7°C | 16.5°C | 113 mm | 8 | 13 h 51 | 66 | Good coverage |
| June | 33.2°C | 21.3°C | 96 mm | 5.7 | 14 h 20 | 47 | Good coverage |
| July | 35.8°C | 23.2°C | 43 mm | 3.9 | 14 h 08 | 45 | Good coverage |
| August | 35.9°C | 23°C | 55 mm | 3.9 | 13 h 22 | 43 | Good coverage |
| September | 31.7°C | 18.6°C | 64 mm | 4.5 | 12 h 20 | 63 | Good coverage |
| October | 25.7°C | 12°C | 99 mm | 5.7 | 11 h 18 | 78 | Good coverage |
| November | 19.4°C | 6.2°C | 60 mm | 4.4 | 10 h 24 | 64 | Good coverage |
| December | 14.1°C | 1.2°C | 58 mm | 4.6 | 9 h 58 | 38 | Good coverage |
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 30.0°C11 Jan 2023 | -15.5°C17 Jan 2018 | 63 mm8 Jan 2013 | 137 mm2012 · driest 1 mm in 2022 | 30 |
| February | 33.9°C26 Feb 2024 | -21.0°C16 Feb 2021 | 69 mm20 Feb 2018 | 210 mm2001 · driest 10 mm in 2014 | 30 |
| March | 35.0°C22 Mar 2026 | -11.0°C3 Mar 2014 | 101 mm18 Mar 2020 | 262 mm2020 · driest 3 mm in 2011 | 30 |
| April | 38.3°C17 Apr 2006 | -3.2°C7 Apr 2009 | 136 mm24 Apr 2007 | 191 mm2024 · driest 4 mm in 2005 | 30 |
| May | 37.8°C31 May 1998 | 0.6°C3 May 2013 | 85 mm16 May 2020 | 304 mm2015 · driest 34 mm in 1998 | 30 |
| June | 41.1°C26 Jun 2012 | 11.7°C6 Jun 1998 | 101 mm18 Jun 2007 | 358 mm2007 · driest 7 mm in 2022 | 30 |
| July | 43.9°C19 Jul 2022 | 13.9°C3 Jul 2013 | 120 mm17 Jul 2014 | 159 mm2014 · driest 0 mm in 2011 | 31 |
| August | 43.9°C17 Aug 2023 | 13.9°C12 Aug 2004 | 78 mm19 Aug 2004 | 134 mm2008 · driest 0 mm in 2000 | 30 |
| September | 43.9°C4 Sep 2000 | 4.4°C30 Sep 1999 | 125 mm8 Sep 2010 | 238 mm2010 · driest 3 mm in 2019 | 30 |
| October | 36.1°C7 Oct 2014 | -2.7°C31 Oct 2019 | 90 mm4 Oct 2004 | 321 mm2009 · driest 6 mm in 2003 | 30 |
| November | 34.4°C2 Nov 2017 | -8.2°C18 Nov 2014 | 80 mm27 Nov 2015 | 243 mm2015 · driest 1 mm in 2005 | 30 |
| December | 30.6°C3 Dec 2005 | -14.4°C9 Dec 2005 | 57 mm26 Dec 2015 | 134 mm2015 · driest 2 mm in 2025 | 30 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) |
|---|---|---|---|---|
| January | 1 | 0 | 16 | 2 |
| February | 2 | <1 | 10 | 2 |
| March | 8 | <1 | 4 | 3 |
| April | 15 | 3 | <1 | 3 |
| May | 26 | 14 | 0 | 3 |
| June | 30 | 26 | 0 | 3 |
| July | 31 | 30 | 0 | 1 |
| August | 31 | 29 | 0 | 2 |
| September | 28 | 22 | 0 | 2 |
| October | 19 | 7 | <1 | 3 |
| November | 6 | <1 | 5 | 2 |
| December | 1 | 0 | 15 | 2 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 18% | 13% | 5% | 10% | 11.1–15.8°C |
| February | 32% | 17% | 6% | 14% | 12.4–19.4°C |
| March | 52% | 18% | 8% | 17% | 17.7–22.9°C |
| April | 71% | 19% | 9% | 16% | 22.3–26.3°C |
| May | 73% | 26% | 12% | 27% | 26.5–30.7°C |
| June | 82% | 18% | 9% | 15% | 31.6–35.4°C |
| July | 89% | 12% | 4% | 6% | 34.0–38.1°C |
| August | 88% | 12% | 5% | 12% | 33.7–38.9°C |
| September | 85% | 15% | 6% | 11% | 29.1–34.5°C |
| October | 75% | 18% | 9% | 17% | 24.4–28.2°C |
| November | 48% | 15% | 7% | 11% | 16.4–22.0°C |
| December | 20% | 14% | 7% | 11% | 11.8–16.8°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