October
Other strong months: July and September
96/100 weather score
United States · 1991–2020
Best time to visit
Grant Hill
For Grant Hill, October has the most comfortable weather in our climate comparison. Typical daytime highs are 23.4°C, nights average 16.3°C, and rainfall totals about 13 mm. Figures use measured 1991–2020 normals from the nearest eligible NOAA station.
Best all-round monthOctober
Typical daytime high23.4°C
Typical night-time low16.3°C
October rainfall13 mm
August
Other strong months: September and July
84/100 weather score
April
Other strong months: December and November
93/100 weather score
Make the answer personal
Choose the weather
that suits you.
Set the daytime temperature and rainfall you are comfortable with. We will show only the months that meet every choice, using the measured 1991–2020 averages below.
12 months fit your choices for Grant Hill
The lowest comfort score is 70 out of 100. January and February share that score. In January, that is mainly because days reach only 18.9°C, 5° below the 24°C the score treats as ideal.
Quick answers
Planning a trip to Grant Hill?
These answers come from the same measured monthly climate record shown on this page.
When is the best time to visit Grant Hill?
October is the strongest all-round choice in our temperature-and-rainfall comparison, with a typical daytime high of 23.4°C and 13 mm of rain.
What is the hottest month in Grant Hill?
August is hottest in this record, with a typical daytime high of 25°C and a night-time low of 19.5°C.
Which month has the least rain?
August has the lowest monthly rainfall total at 0 mm.
Is this a weather forecast?
No. These are long-term measured averages from 1991–2020. Check a current forecast before you travel.
Month by month
See how the weather
changes through the year.
The bars combine daytime temperature, night-time temperature and rainfall. The figures are measured historical averages, not a forecast for a particular trip.
| Month | Day | Night | Rain | Wet days | Sea | Daylight | Comfort | Coverage |
|---|---|---|---|---|---|---|---|---|
| January | 18.9°C | 10°C | 50 mm | 5.3 | 15.3°C | 10 h 13 | 70 | Strong coverage |
| February | 18.7°C | 10.8°C | 56 mm | 5.5 | 15.1°C | 10 h 58 | 70 | Strong coverage |
| March | 19.2°C | 12.3°C | 37 mm | 4.6 | 15.5°C | 11 h 53 | 77 | Strong coverage |
| April | 20.2°C | 13.7°C | 17 mm | 2.8 | 16.1°C | 12 h 56 | 85 | Strong coverage |
| May | 20.6°C | 15.5°C | 7 mm | 1.2 | 17.3°C | 13 h 49 | 88 | Strong coverage |
| June | 21.7°C | 16.9°C | 1 mm | 0.3 | 18.6°C | 14 h 17 | 89 | Strong coverage |
| July | 23.8°C | 18.8°C | 2 mm | 0.2 | 20.2°C | 14 h 06 | 92 | Strong coverage |
| August | 25°C | 19.5°C | 0 mm | 0.1 | 21.0°C | 13 h 21 | 89 | Strong coverage |
| September | 24.9°C | 18.8°C | 3 mm | 0.5 | 20.5°C | 12 h 20 | 90 | Strong coverage |
| October | 23.4°C | 16.3°C | 13 mm | 1.6 | 19.3°C | 11 h 19 | 96 | Strong coverage |
| November | 21.2°C | 12.5°C | 20 mm | 2.8 | 17.5°C | 10 h 26 | 86 | Strong coverage |
| December | 18.6°C | 9.7°C | 42 mm | 4.2 | 16.0°C | 10 h 00 | 71 | Strong coverage |
What has changed
Recent daytime highs are
0.4°C warmer in Grant Hill.
Each bar shows the difference between the 2011–2025 average daytime high and the 1961–1990 average for the same month at the same station. A blank month does not have enough older observations for a reliable comparison.
Jan
+0.6
Feb
+0.1
Mar
+0.5
Apr
+0.6
May
+0.2
Jun
-0.1
Jul
-0.1
Aug
+0.2
Sep
+0.8
Oct
+0.7
Nov
+0.9
Dec
+0.4
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 31.1°C10 Jan 1953 | -1.7°C4 Jan 1949 | 69 mm22 Jan 2024 | 231 mm1993 · driest 0 mm in 1948 | 87 |
| February | 32.8°C12 Feb 2022 | 2.2°C15 Feb 1949 | 59 mm27 Feb 2017 | 194 mm1998 · driest 0 mm in 1967 | 87 |
| March | 33.9°C17 Mar 1978 | 3.9°C2 Mar 1971 | 54 mm7 Mar 1952 | 177 mm1991 · driest 0 mm in 1956 | 87 |
| April | 36.7°C20 Apr 2009 | 5.0°C3 Apr 1945 | 36 mm20 Apr 1988 | 94 mm1988 · driest 0 mm in 2008 | 87 |
| May | 36.1°C15 May 2014 | 8.9°C1 May 1967 | 41 mm14 May 2015 | 61 mm2015 · driest 0 mm in 1959 | 87 |
| June | 38.3°C10 Jun 1979 | 10.0°C14 Jun 1943 | 12 mm10 Jun 1990 | 22 mm1990 · driest 0 mm in 2024 | 87 |
| July | 37.2°C22 Jul 2006 | 12.8°C5 Jul 1948 | 26 mm18 Jul 2015 | 44 mm2015 · driest 0 mm in 2011 | 88 |
| August | 36.7°C31 Aug 1955 | 13.9°C7 Aug 1944 | 46 mm20 Aug 2023 | 54 mm1977 · driest 0 mm in 1959 | 87 |
| September | 43.9°C26 Sep 1963 | 10.6°C26 Sep 1948 | 31 mm15 Sep 2015 | 80 mm1939 · driest 0 mm in 1953 | 87 |
| October | 41.7°C14 Oct 1961 | 6.1°C30 Oct 1971 | 69 mm27 Oct 2004 | 127 mm2004 · driest 0 mm in 1944 | 87 |
| November | 37.8°C4 Nov 2010 | 3.3°C15 Nov 1964 | 52 mm25 Nov 1985 | 148 mm1965 · driest 0 mm in 2021 | 87 |
| December | 31.1°C29 Dec 1963 | 1.1°C25 Dec 1987 | 66 mm22 Dec 1945 | 193 mm1943 · driest 0 mm in 2024 | 87 |
| Month | Days 25°C+ | Days 30°C+ | Heavy rain (10 mm+) |
|---|---|---|---|
| January | 2 | 0 | 2 |
| February | 2 | <1 | 2 |
| March | 2 | <1 | 1 |
| April | 3 | <1 | <1 |
| May | 2 | <1 | <1 |
| June | 3 | <1 | 0 |
| July | 9 | <1 | <1 |
| August | 15 | 1 | 0 |
| September | 13 | 2 | <1 |
| October | 8 | 2 | <1 |
| November | 5 | 1 | <1 |
| December | 1 | 0 | 1 |
| Month | Dry days reaching 20°C | Wet days | Days with heavy rain | Weeks with 3+ wet days | Typical high by year |
|---|---|---|---|---|---|
| January | 32% | 17% | 5% | 18% | 17.0–20.8°C |
| February | 30% | 18% | 5% | 19% | 17.2–20.9°C |
| March | 32% | 16% | 5% | 14% | 17.6–20.9°C |
| April | 46% | 9% | 2% | 6% | 18.5–21.7°C |
| May | 63% | 4% | <1% | 1% | 19.4–22.4°C |
| June | 86% | 1% | 0% | <1% | 20.7–23.4°C |
| July | 99% | <1% | <1% | 0% | 22.9–25.7°C |
| August | 99% | <1% | <1% | 0% | 23.7–26.4°C |
| September | 97% | 3% | <1% | <1% | 23.4–27.3°C |
| October | 91% | 5% | 1% | 3% | 21.9–25.5°C |
| November | 62% | 11% | 3% | 9% | 19.6–23.2°C |
| December | 34% | 14% | 4% | 13% | 17.2–21.2°C |
A dry day reaching 20°C records under 1 mm of rain. A wet day records at least 1 mm, while a heavy-rain day records at least 10 mm. The weekly figure is the share of seven-day periods containing three or more wet days. The final column shows the middle 80% of average daytime highs recorded for that month in individual years; a wider range means conditions have varied more from one year to another.
The evidence behind this page
Where these figures
come from.
- Place identity
- GeoNames 5353649
- NOAA station
- USW00023188 · SAN DIEGO INTL AP
- Station distance
- 5 km from the place centre
- Climate period
- 1991–2020
- Minimum month coverage
- 30 usable years
- Daylight
- Calculated from latitude 32.71°, mid-month, sunrise to sunset including refraction. Not a station measurement.
- Sea temperature
- NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 10 km from the place centre. A sheltered bay can run warmer than the open sea it is measured from.
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.
Next step
Choose your month.
Then plan the details.
The weather comparison for Grant Hill is based on climate evidence, not payments from travel companies. Flight, accommodation and activity links will be clearly labelled when they are added; there are no booking offers on this page today.
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