September
September · May · June
United States · 1991–2020
September leads for comfortable weather in Lakeside: typically 24.6°C by day, 8°C at night, with 52 mm of rain. Based on measured 1991–2020 NOAA station history.
September · May · June
June · July · August
May · October · September
The weakest month is January, scoring 5 against September’s 80 — days reach only 7.7°C, 16° below the 24°C the score treats as ideal, and nights drop to -6.4°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 | 7.7°C | -6.4°C | 59 mm | 5.8 | 10 h 06 | 5 | Good coverage |
| February | 9.3°C | -5.2°C | 56 mm | 5.8 | 10 h 54 | 9 | Good coverage |
| March | 13.3°C | -2.3°C | 48 mm | 5.1 | 11 h 52 | 30 | Good coverage |
| April | 17.4°C | 0.5°C | 23 mm | 3.8 | 12 h 59 | 51 | Good coverage |
| May | 22°C | 3.7°C | 20 mm | 2.8 | 13 h 55 | 73 | Good coverage |
| June | 28.5°C | 8.3°C | 15 mm | 2.3 | 14 h 25 | 73 | Good coverage |
| July | 28.4°C | 11.9°C | 86 mm | 10.5 | 14 h 13 | 66 | Good coverage |
| August | 26.8°C | 11.3°C | 98 mm | 11.7 | 13 h 26 | 67 | Good coverage |
| September | 24.6°C | 8°C | 52 mm | 6.4 | 12 h 21 | 80 | Good coverage |
| October | 19.2°C | 2.4°C | 42 mm | 4.3 | 11 h 16 | 60 | Good coverage |
| November | 13.1°C | -2.6°C | 42 mm | 4 | 10 h 20 | 31 | Good coverage |
| December | 7.9°C | -6.4°C | 63 mm | 5.8 | 9 h 53 | 5 | Good coverage |
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 17.8°C9 Jan 2002 | -22.2°C13 Jan 2013 | 101 mm22 Jan 2010 | 188 mm2010 · driest 0 mm in 2014 | 21 |
| February | 20.0°C18 Feb 2016 | -24.4°C13 Feb 1948 | 47 mm22 Feb 2019 | 142 mm2005 · driest 0 mm in 2006 | 22 |
| March | 26.1°C21 Mar 2004 | -24.4°C4 Mar 1948 | 38 mm2 Mar 2014 | 96 mm2020 · driest 0 mm in 1947 | 22 |
| April | 27.2°C29 Apr 2020 | -13.9°C2 Apr 2016 | 37 mm6 Apr 2001 | 66 mm2001 · driest 0 mm in 1947 | 22 |
| May | 33.3°C31 May 2002 | -5.6°C10 May 2003 | 33 mm23 May 2008 | 49 mm2001 · driest 0 mm in 2012 | 21 |
| June | 36.1°C21 Jun 2017 | 0.6°C13 Jun 2010 | 20 mm10 Jun 2009 | 44 mm2009 · driest 0 mm in 2014 | 19 |
| July | 37.2°C11 Jul 2003 | 2.2°C1 Jul 2004 | 46 mm31 Jul 2003 | 186 mm2010 · driest 20 mm in 2009 | 19 |
| August | 32.2°C8 Aug 2018 | 4.4°C24 Aug 2002 | 54 mm12 Aug 2005 | 141 mm2003 · driest 54 mm in 2009 | 19 |
| September | 31.1°C15 Sep 2000 | -2.8°C28 Sep 2013 | 82 mm28 Sep 2014 | 156 mm2014 · driest 11 mm in 2000 | 20 |
| October | 29.4°C1 Oct 2010 | -11.1°C30 Oct 2009 | 32 mm28 Oct 2000 | 145 mm2000 · driest 0 mm in 2013 | 20 |
| November | 23.9°C4 Nov 2009 | -16.7°C30 Nov 2004 | 52 mm21 Nov 2019 | 99 mm2019 · driest 0 mm in 2017 | 22 |
| December | 21.1°C14 Dec 2010 | -20.0°C29 Dec 2012 | 64 mm8 Dec 2007 | 216 mm2007 · driest 1 mm in 2017 | 21 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 28 | 2 | 6 |
| February | 0 | 0 | 25 | 2 | 5 |
| March | <1 | 0 | 24 | 1 | 3 |
| April | <1 | 0 | 16 | <1 | 2 |
| May | 9 | <1 | 6 | <1 | <1 |
| June | 26 | 11 | 0 | <1 | 0 |
| July | 27 | 11 | 0 | 4 | 0 |
| August | 23 | 5 | 0 | 4 | 0 |
| September | 16 | <1 | <1 | 2 | 0 |
| October | 2 | 0 | 9 | 1 | <1 |
| November | 0 | 0 | 23 | 1 | 2 |
| December | 0 | 0 | 28 | 2 | 6 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 0% | 18% | 6% | 18% | 4.6–10.5°C |
| February | <1% | 19% | 7% | 20% | 5.5–12.1°C |
| March | 8% | 18% | 6% | 16% | 10.5–15.7°C |
| April | 32% | 11% | 2% | 8% | 16.0–19.3°C |
| May | 70% | 7% | 2% | 5% | 19.8–24.0°C |
| June | 93% | 8% | 1% | 7% | 26.9–30.0°C |
| July | 60% | 35% | 10% | 50% | 27.2–30.2°C |
| August | 64% | 37% | 10% | 46% | 25.0–28.4°C |
| September | 74% | 20% | 6% | 18% | 23.7–26.3°C |
| October | 48% | 13% | 5% | 12% | 17.3–21.7°C |
| November | 7% | 13% | 5% | 11% | 10.7–15.2°C |
| December | <1% | 16% | 7% | 15% | 6.1–10.3°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