April
Other strong months: October and May
United States · 1991–2020
For Greenfield, April has the most comfortable weather in our climate comparison. Typical daytime highs are 23.9°C, nights average 9.5°C, and rainfall totals about 19 mm. Figures use measured 1991–2020 normals from the nearest eligible NOAA station.
Other strong months: October and May
Other strong months: March and April
Make the answer personal
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.
4 months fit your choices for Greenfield
The lowest comfort score is 47 out of 100. January and July share that score. In January, that is mainly because days reach only 14.9°C, 9° below the 24°C the score treats as ideal, and nights drop to 3.5°C.
Quick answers
These answers come from the same measured monthly climate record shown on this page.
April is the strongest all-round choice in our temperature-and-rainfall comparison, with a typical daytime high of 23.9°C and 19 mm of rain.
July is hottest in this record, with a typical daytime high of 36.6°C and a night-time low of 21°C.
June, July and August have the lowest monthly rainfall total at 0 mm.
No. These are long-term measured averages from 1991–2020. Check a current forecast before you travel.
Month by month
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 | Daylight | Comfort | Coverage |
|---|---|---|---|---|---|---|---|
| January | 14.9°C | 3.5°C | 29 mm | 5.2 | 10 h 01 | 47 | Good coverage |
| February | 17.9°C | 4.5°C | 24 mm | 4.1 | 10 h 51 | 60 | Good coverage |
| March | 21.1°C | 7.1°C | 24 mm | 3.6 | 11 h 52 | 76 | Good coverage |
| April | 23.9°C | 9.5°C | 19 mm | 2.9 | 13 h 02 | 90 | Good coverage |
| May | 28.6°C | 13.5°C | 7 mm | 1.3 | 14 h | 82 | Good coverage |
| June | 33.4°C | 17.7°C | 0 mm | 0.1 | 14 h 31 | 64 | Good coverage |
| July | 36.6°C | 21°C | 0 mm | 0.1 | 14 h 19 | 47 | Good coverage |
| August | 35.9°C | 20.1°C | 0 mm | 0 | 13 h 29 | 52 | Good coverage |
| September | 32.9°C | 17.3°C | 2 mm | 0.3 | 12 h 21 | 67 | Good coverage |
| October | 26.7°C | 12.2°C | 6 mm | 1.1 | 11 h 14 | 86 | Good coverage |
| November | 19.8°C | 6.7°C | 12 mm | 2.1 | 10 h 16 | 71 | Good coverage |
| December | 15.1°C | 3.1°C | 21 mm | 3.9 | 9 h 47 | 49 | Good coverage |
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 26.1°C25 Jan 2014 | -6.1°C12 Jan 1999 | 27 mm25 Jan 1999 | 90 mm2017 · driest 1 mm in 2003 | 27 |
| February | 30.0°C13 Feb 2022 | -3.9°C1 Feb 2002 | 39 mm25 Feb 2023 | 60 mm2023 · driest 0 mm in 2020 | 27 |
| March | 34.4°C19 Mar 2026 | -0.6°C6 Mar 1999 | 32 mm6 Mar 2019 | 96 mm2023 · driest 0 mm in 2026 | 28 |
| April | 36.7°C8 Apr 2022 | -1.1°C11 Apr 1999 | 24 mm8 Apr 2020 | 70 mm2020 · driest 0 mm in 2023 | 28 |
| May | 40.0°C18 May 2009 | 3.9°C8 May 2003 | 20 mm2 May 2009 | 43 mm2019 · driest 0 mm in 2012 | 27 |
| June | 43.3°C22 Jun 2008 | 7.8°C4 Jun 1999 | 11 mm7 Jun 2023 | 12 mm2023 · driest 0 mm in 2004 | 27 |
| July | 44.4°C8 Jul 2024 | 11.1°C9 Jul 1999 | 1 mm19 Jul 2015 | 2 mm2015 · driest 0 mm in 2016 | 27 |
| August | 42.8°C30 Aug 2017 | 12.8°C31 Aug 1999 | 28 mm21 Aug 2023 | 28 mm2023 · driest 0 mm in 2008 | 26 |
| September | 42.2°C10 Sep 2021 | 1.7°C20 Sep 2007 | 23 mm14 Sep 2017 | 25 mm2017 · driest 0 mm in 2012 | 26 |
| October | 38.3°C4 Oct 2024 | 4.4°C31 Oct 2023 | 23 mm26 Oct 2021 | 33 mm2004 · driest 0 mm in 2002 | 26 |
| November | 33.3°C6 Nov 2010 | -3.3°C29 Nov 2004 | 32 mm17 Nov 2025 | 77 mm2025 · driest 0 mm in 2000 | 26 |
| December | 26.7°C9 Dec 2006 | -4.4°C1 Dec 2004 | 29 mm24 Dec 2016 | 81 mm2021 · driest 0 mm in 2000 | 27 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) |
|---|---|---|---|---|
| January | <1 | 0 | 5 | 1 |
| February | 1 | 0 | 3 | <1 |
| March | 6 | <1 | <1 | <1 |
| April | 11 | 4 | <1 | <1 |
| May | 22 | 12 | 0 | <1 |
| June | 26 | 22 | 0 | 0 |
| July | 29 | 29 | 0 | 0 |
| August | 28 | 28 | 0 | 0 |
| September | 27 | 21 | 0 | 0 |
| October | 20 | 7 | 0 | <1 |
| November | 4 | <1 | 1 | <1 |
| December | 0 | 0 | 6 | <1 |
| Month | Dry days reaching 20°C | Wet days | Days with heavy rain | Weeks with 3+ wet days | Typical high by year |
|---|---|---|---|---|---|
| January | 10% | 17% | 3% | 19% | 13.1–17.1°C |
| February | 30% | 15% | 3% | 16% | 16.1–20.0°C |
| March | 56% | 14% | 3% | 12% | 19.2–24.2°C |
| April | 77% | 9% | 2% | 3% | 21.7–25.8°C |
| May | 95% | 4% | <1% | 2% | 26.4–30.6°C |
| June | 100% | <1% | <1% | 0% | 31.7–35.3°C |
| July | 100% | <1% | 0% | 0% | 35.4–38.2°C |
| August | 100% | <1% | <1% | 0% | 34.6–37.1°C |
| September | 99% | <1% | <1% | 0% | 31.2–34.0°C |
| October | 92% | 4% | <1% | <1% | 25.1–29.1°C |
| November | 48% | 7% | 1% | 4% | 17.6–21.5°C |
| December | 11% | 14% | 2% | 12% | 13.2–16.8°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
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