July
July · August · June
Canada · 1991–2020
July leads for comfortable weather in Lucerne: typically 23.7°C by day, 7.2°C at night, with 51 mm of rain. Based on measured 1991–2020 NOAA station history.
July · August · June
July · August · June
June · September · August
The weakest month is January, scoring 5 against July’s 77 — days reach only -3°C, 27° below the 24°C the score treats as ideal, and nights drop to -14.7°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 | -3°C | -14.7°C | 19 mm | 4.6 | 8 h 06 | 5 | Strong coverage |
| February | 0.7°C | -12.9°C | 12 mm | 3.4 | 9 h 46 | 5 | Strong coverage |
| March | 4.4°C | -8.5°C | 17 mm | 5.4 | 11 h 40 | 5 | Strong coverage |
| April | 10.9°C | -3.9°C | 13 mm | 3.6 | 13 h 52 | 22 | Strong coverage |
| May | 16.5°C | 0.5°C | 29 mm | 6.2 | 15 h 46 | 46 | Strong coverage |
| June | 20.1°C | 4.9°C | 54 mm | 8.4 | 16 h 52 | 61 | Strong coverage |
| July | 23.7°C | 7.2°C | 51 mm | 9.2 | 16 h 25 | 77 | Strong coverage |
| August | 23°C | 5.8°C | 43 mm | 8.4 | 14 h 44 | 74 | Strong coverage |
| September | 18.1°C | 2.3°C | 32 mm | 6.3 | 12 h 36 | 55 | Strong coverage |
| October | 10°C | -2.5°C | 25 mm | 6.4 | 10 h 29 | 19 | Strong coverage |
| November | 1.6°C | -8.2°C | 25 mm | 6.3 | 8 h 36 | 5 | Strong coverage |
| December | -3.5°C | -14.3°C | 15 mm | 3.6 | 7 h 37 | 5 | Strong coverage |
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 13.1°C29 Jan 2024 | -44.8°C14 Jan 2020 | 13 mm11 Jan 2014 | 38 mm2020 · driest 0 mm in 2000 | 32 |
| February | 12.9°C26 Feb 2016 | -39.8°C10 Feb 2019 | 16 mm1 Feb 2019 | 35 mm1995 · driest 0 mm in 2012 | 32 |
| March | 20.8°C29 Mar 2004 | -36.5°C8 Mar 2002 | 11 mm16 Mar 2018 | 38 mm2017 · driest 0 mm in 1998 | 32 |
| April | 26.7°C30 Apr 2023 | -20.1°C2 Apr 2020 | 13 mm24 Apr 2015 | 41 mm2012 · driest 0 mm in 2004 | 33 |
| May | 30.8°C15 May 2023 | -15.8°C11 May 2014 | 32 mm21 May 2020 | 66 mm2023 · driest 0 mm in 2000 | 32 |
| June | 41.2°C30 Jun 2021 | -3.8°C1 Jun 2000 | 89 mm19 Jun 2023 | 145 mm2012 · driest 4 mm in 2010 | 32 |
| July | 39.4°C1 Jul 2021 | -3.4°C1 Jul 2010 | 42 mm23 Jul 2012 | 109 mm2001 · driest 7 mm in 2017 | 32 |
| August | 34.4°C28 Aug 1996 | -2.6°C18 Aug 2005 | 38 mm15 Aug 1997 | 77 mm2021 · driest 9 mm in 2009 | 31 |
| September | 33.7°C3 Sep 2022 | -9.8°C22 Sep 2000 | 40 mm20 Sep 2017 | 74 mm2005 · driest 0 mm in 1999 | 31 |
| October | 26.7°C3 Oct 2003 | -22.1°C25 Oct 2020 | 18 mm28 Oct 2003 | 52 mm2012 · driest 8 mm in 2002 | 31 |
| November | 19.9°C8 Nov 2016 | -38.3°C29 Nov 2014 | 21 mm8 Nov 1996 | 52 mm1995 · driest 0 mm in 2000 | 31 |
| December | 10.1°C1 Dec 2008 | -43.2°C20 Dec 2022 | 23 mm2 Dec 1995 | 41 mm2021 · driest 0 mm in 1999 | 31 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 30 | <1 | 3 |
| February | 0 | 0 | 27 | <1 | 2 |
| March | 0 | 0 | 29 | 0 | 3 |
| April | <1 | 0 | 25 | 0 | <1 |
| May | 2 | 0 | 14 | <1 | <1 |
| June | 4 | <1 | 2 | 1 | <1 |
| July | 12 | 4 | <1 | 1 | 0 |
| August | 12 | 3 | <1 | <1 | 0 |
| September | 5 | <1 | 8 | <1 | <1 |
| October | <1 | 0 | 21 | <1 | 2 |
| November | 0 | 0 | 28 | <1 | 4 |
| December | 0 | 0 | 30 | <1 | 2 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 0% | 15% | <1% | 12% | -6.1–0.1°C |
| February | 0% | 13% | <1% | 11% | -4.8–3.7°C |
| March | <1% | 16% | <1% | 12% | 1.5–7.4°C |
| April | 5% | 12% | <1% | 6% | 7.9–12.9°C |
| May | 28% | 20% | 2% | 20% | 14.1–19.0°C |
| June | 45% | 28% | 4% | 32% | 18.8–22.4°C |
| July | 62% | 29% | 4% | 34% | 21.0–26.8°C |
| August | 58% | 27% | 3% | 27% | 21.2–25.5°C |
| September | 35% | 22% | 2% | 21% | 14.7–22.1°C |
| October | 6% | 20% | <1% | 21% | 7.8–12.7°C |
| November | 0% | 21% | 1% | 24% | -1.3–4.3°C |
| December | 0% | 13% | <1% | 9% | -8.4–0.7°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