July
July · August · September
83climate match
Canada · 1991–2020
Best time to visit
Lethbridge.
July leads for comfortable weather in Lethbridge: typically 26.7°C by day, 11.6°C at night, with 32 mm of rain. Based on measured 1991–2020 NOAA station history.
Best comfortJuly
Typical high26.7°C
Typical low11.6°C
Rain in July32 mm
July
July · August · September
65climate match
September
September · May · June
89climate match
The weakest month is January, scoring 5 against July’s 83 — days reach only 0.3°C, 24° below the 24°C the score treats as ideal, and nights drop to -11.2°C.
Month by month
The whole year,
without the guesswork.
The bars show the comfort score. Day and night temperatures come from daily observed highs and lows; rain is the historical monthly estimate.
Jan
50.3° / -11.2°
Feb
51.9° / -10.2°
Mar
56° / -6.4°
Apr
3312.3° / -0.7°
May
5818.1° / 4.7°
Jun
7121.9° / 9.2°
Jul
8326.7° / 11.6°
Aug
8326.4° / 10.5°
Sep
7321° / 6.3°
Oct
3813.3° / 0.5°
Nov
55.7° / -5.7°
Dec
50.6° / -10.5°
| Month | Day | Night | Rain | Wet days | Daylight | Comfort | Coverage |
|---|---|---|---|---|---|---|---|
| January | 0.3°C | -11.2°C | 4 mm | 1.1 | 8 h 33 | 5 | Good coverage |
| February | 1.9°C | -10.2°C | 4 mm | 1.3 | 10 h 01 | 5 | Good coverage |
| March | 6°C | -6.4°C | 8 mm | 2.2 | 11 h 43 | 5 | Good coverage |
| April | 12.3°C | -0.7°C | 15 mm | 2.9 | 13 h 40 | 33 | Good coverage |
| May | 18.1°C | 4.7°C | 46 mm | 5.9 | 15 h 20 | 58 | Strong coverage |
| June | 21.9°C | 9.2°C | 86 mm | 8.1 | 16 h 17 | 71 | Good coverage |
| July | 26.7°C | 11.6°C | 32 mm | 4.8 | 15 h 55 | 83 | Good coverage |
| August | 26.4°C | 10.5°C | 29 mm | 4.7 | 14 h 26 | 83 | Strong coverage |
| September | 21°C | 6.3°C | 29 mm | 4.4 | 12 h 32 | 73 | Strong coverage |
| October | 13.3°C | 0.5°C | 17 mm | 3 | 10 h 40 | 38 | Strong coverage |
| November | 5.7°C | -5.7°C | 6 mm | 2.1 | 8 h 59 | 5 | Good coverage |
| December | 0.6°C | -10.5°C | 4 mm | 1.2 | 8 h 09 | 5 | Good coverage |
What has changed
Lethbridge runs +1.2°C
on the 1961–1990 baseline.
Each bar compares the 2011–2025 daytime average for that month against the same month in 1961–1990, measured at the same station. Months where the older record is too thin to compare are left blank.
Jan
+4.2
Feb
-0.7
Mar
+0.6
Apr
+0.3
May
+0.9
Jun
+0.5
Jul
+1.6
Aug
+2.3
Sep
+2.7
Oct
-0.8
Nov
+1.2
Dec
+1.9
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 20.0°C26 Jan 2015 | -42.8°C28 Jan 1929 | 18 mm24 Jan 1959 | 51 mm1978 · driest 0 mm in 2010 | 111 |
| February | 20.0°C2 Feb 1962 | -41.1°C1 Feb 1917 | 24 mm22 Feb 1953 | 55 mm1953 · driest 0 mm in 2009 | 110 |
| March | 27.0°C30 Mar 2004 | -37.8°C5 Mar 1947 | 36 mm27 Mar 1977 | 59 mm1934 · driest 0 mm in 1995 | 111 |
| April | 31.1°C25 Apr 1910 | -27.2°C11 Apr 1940 | 54 mm26 Apr 1974 | 94 mm1978 · driest 0 mm in 1998 | 110 |
| May | 33.5°C30 May 1986 | -12.8°C1 May 1954 | 57 mm23 May 1980 | 186 mm1927 · driest 0 mm in 2001 | 110 |
| June | 36.5°C14 Jun 2021 | -3.3°C1 Jun 1951 | 93 mm21 Jun 1963 | 254 mm2005 · driest 0 mm in 2014 | 111 |
| July | 37.9°C1 Jul 2021 | 0.0°C3 Jul 1979 | 56 mm18 Jul 1916 | 104 mm1941 · driest 0 mm in 2014 | 111 |
| August | 40.1°C10 Aug 2018 | -1.7°C27 Aug 1911 | 92 mm23 Aug 1979 | 168 mm1978 · driest 0 mm in 2014 | 112 |
| September | 36.4°C3 Sep 2022 | -15.6°C25 Sep 1934 | 76 mm10 Sep 2005 | 123 mm1925 · driest 0 mm in 1948 | 111 |
| October | 30.0°C7 Oct 1933 | -26.1°C25 Oct 1919 | 72 mm2 Oct 1910 | 111 mm1946 · driest 0 mm in 1944 | 111 |
| November | 23.3°C7 Nov 1908 | -35.6°C19 Nov 1921 | 36 mm1 Nov 1944 | 73 mm1927 · driest 0 mm in 2009 | 111 |
| December | 19.4°C8 Dec 1908 | -42.8°C18 Dec 1924 | 23 mm11 Dec 1933 | 58 mm1933 · driest 0 mm in 2010 | 110 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 26 | 0 | <1 |
| February | 0 | 0 | 25 | 0 | <1 |
| March | 0 | 0 | 24 | 0 | 2 |
| April | <1 | 0 | 16 | <1 | <1 |
| May | 4 | <1 | 4 | 2 | <1 |
| June | 7 | 1 | 0 | 2 | 0 |
| July | 20 | 7 | 0 | <1 | 0 |
| August | 18 | 8 | 0 | <1 | 0 |
| September | 8 | 3 | 2 | <1 | 0 |
| October | <1 | 0 | 13 | <1 | <1 |
| November | 0 | 0 | 22 | <1 | 3 |
| December | 0 | 0 | 27 | 0 | <1 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 0% | 14% | <1% | 11% | -9.4–4.6°C |
| February | 0% | 15% | <1% | 13% | -5.9–6.6°C |
| March | 1% | 16% | 1% | 13% | 0.4–9.8°C |
| April | 14% | 16% | 2% | 15% | 8.4–16.1°C |
| May | 35% | 22% | 5% | 25% | 15.5–20.6°C |
| June | 55% | 27% | 7% | 31% | 19.5–24.6°C |
| July | 78% | 18% | 4% | 13% | 23.9–28.4°C |
| August | 75% | 17% | 3% | 16% | 22.3–27.9°C |
| September | 47% | 18% | 4% | 16% | 15.7–23.7°C |
| October | 20% | 12% | 2% | 8% | 10.2–16.9°C |
| November | 1% | 13% | 1% | 11% | 0.3–9.9°C |
| December | 0% | 14% | <1% | 13% | -6.1–5.0°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
Nearby, measured,
and named.
- Place identity
- GeoNames 6053154
- NOAA station
- CA003033890 · LETHBRIDGE CDA
- Station distance
- 3.7 km from the place centre
- Climate period
- 1991–2020
- Minimum month coverage
- 18 usable years
- Daylight
- Calculated from latitude 49.70°, mid-month, sunrise to sunset including refraction. Not a station measurement.
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.