AU
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Exercise normal precautions
When to go · Climate guide
United Stateswhen to go
United States' national averages run from 5 °C in January to 30 °C in July, with rainfall between 66 mm in November and 101 mm in May and 4.6–8.4 hours of sun a day. Against the default preferences (under 2.7 mm of rain a day, at least 6 hours of sun), the strongest months are September, May and June. Its 51 regions span 1–28 °C in annual mean temperature, so the national figure hides a good deal. United States is large enough that the map paints it as a mosaic of its regions rather than one national colour; the figures above are the mean of those regions.
- Capital
- Washington
- Region
- North America
- TZ
- America/New_York
- Area
- 9,455,760 km²
Best months to visit
When United States shines
Climate at a glance · 10-year ERA5
A decade of weather, in one page
— daytime high— overnight low▬ typical range
View data table
| Month | Average daytime high (°C) | Average overnight low (°C) | Typical low | Typical high |
|---|---|---|---|---|
| January | 5.2 | -3.4 | -13.3 | 12.9 |
| February | 7.8 | -1.9 | -11.3 | 16.8 |
| March | 12.5 | 2.2 | -5.9 | 20.4 |
| April | 17.4 | 6.3 | -0.9 | 24.6 |
| May | 22.4 | 11.7 | 5.5 | 29.0 |
| June | 27.5 | 16.6 | 11.6 | 32.5 |
| July | 29.8 | 19.2 | 15.6 | 33.5 |
| August | 28.8 | 18.2 | 14.0 | 33.0 |
| September | 25.7 | 14.9 | 9.0 | 31.2 |
| October | 19.4 | 8.8 | 1.1 | 26.6 |
| November | 12.3 | 2.7 | -4.9 | 20.8 |
| December | 7.3 | -1.3 | -10.1 | 15.0 |
View data table
| Month | Rainfall (mm) |
|---|---|
| January | 78 |
| February | 77 |
| March | 87 |
| April | 93 |
| May | 101 |
| June | 88 |
| July | 93 |
| August | 90 |
| September | 78 |
| October | 80 |
| November | 66 |
| December | 84 |
View data table
| Month | Sunshine hours (hr / day) |
|---|---|
| January | 5.2 |
| February | 6.1 |
| March | 7.0 |
| April | 7.6 |
| May | 7.6 |
| June | 8.4 |
| July | 8.3 |
| August | 7.6 |
| September | 7.1 |
| October | 6.3 |
| November | 5.5 |
| December | 4.6 |
— average▬ typical range
View data table
| Month | Average wind speed (km/h) | Typical low | Typical high |
|---|---|---|---|
| January | 12.5 | 6.9 | 20.1 |
| February | 12.8 | 7.5 | 20.2 |
| March | 13.2 | 7.6 | 21.0 |
| April | 13.1 | 7.8 | 20.8 |
| May | 11.6 | 7.0 | 18.0 |
| June | 10.9 | 6.6 | 16.7 |
| July | 9.6 | 6.3 | 14.1 |
| August | 9.6 | 6.1 | 14.3 |
| September | 10.4 | 6.3 | 16.2 |
| October | 11.7 | 6.7 | 18.8 |
| November | 12.1 | 6.9 | 19.3 |
| December | 12.2 | 6.9 | 20.1 |
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Snow depth
Snow depth for United States is part of the Premium map and its district-level detail. See what Premium includes.
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Sea surface temperature
Sea surface temperature for United States is part of the Premium map and its district-level detail. See what Premium includes.
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Heat index
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Humidity
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What’s open · year round
Things to do in United States
United States closes something in December–April; nothing below runs the whole year.
- Closed
- Closed
Opening seasons are checked by hand against the operators and parks themselves, not derived from the climate figures on this page. Last reviewed 2026-08-28. Dates move — confirm before you book.
51 regions
United States, taken apart
- Alabama14–33 °C yr
- Alaska-14–17 °C yr
- Arizona13–36 °C yr
- Arkansas11–33 °C yr
- California12–33 °C yr
- Colorado3–29 °C yr
- Connecticut3–28 °C yr
- Delaware7–30 °C yr
- Florida20–32 °C yr
- Georgia15–33 °C yr
- Hawaii22–25 °C yr
- Idaho-1–30 °C yr
- Illinois2–30 °C yr
- Indiana3–29 °C yr
- Iowa-1–29 °C yr
- Kansas6–33 °C yr
- Kentucky7–31 °C yr
- Louisiana16–33 °C yr
- Maine-3–25 °C yr
- Maryland6–30 °C yr
- Massachusetts3–27 °C yr
- Michigan-2–23 °C yr
- Minnesota-6–27 °C yr
- Mississippi14–33 °C yr
- Missouri5–32 °C yr
- Montana-2–29 °C yr
- Nebraska3–31 °C yr
- Nevada5–34 °C yr
- New Hampshire-1–27 °C yr
- New Jersey5–30 °C yr
- New Mexico9–32 °C yr
- New York-0–26 °C yr
- North Carolina11–31 °C yr
- North Dakota-6–28 °C yr
- Ohio3–29 °C yr
- Oklahoma11–34 °C yr
- Oregon5–30 °C yr
- Pennsylvania2–28 °C yr
- Rhode Island4–27 °C yr
- South Carolina14–33 °C yr
- South Dakota-1–31 °C yr
- Tennessee9–31 °C yr
- Texas16–35 °C yr
- Utah3–33 °C yr
- Vermont-2–26 °C yr
- Virginia8–31 °C yr
- Washington3–28 °C yr
- Washington7–32 °C yr
- West Virginia5–28 °C yr
- Wisconsin-3–26 °C yr
- Wyoming-1–29 °C yr
Safety · 4 governments
What the governments say about United States
Combined advisory · most-cautious-wins
Exercise normal precautions
Highest level across 4 governments · Advisory last changed
See breakdown by countryHide breakdown
CA
Level 1Exercise normal precautions
Exercise normal precautions
DE
Level 1Exercise normal precautions
Exercise normal precautions
NL
Level 1Exercise normal precautions
Exercise normal precautions
Month by month
A year in United States, in order
- JanJanuary5.2°C · 78 mm · 5.2 hr/day
Around 5 °C with 78 mm of rain and 5.2 hours of sun a day.
Around 5 °C with 78 mm of rain and 5.2 hours of sun a day.
- FebFebruary7.8°C · 77 mm · 6.1 hr/day
Around 8 °C with 77 mm of rain and 6.1 hours of sun a day.
Around 8 °C with 77 mm of rain and 6.1 hours of sun a day.
- MarMarch12.5°C · 87 mm · 7.0 hr/day
Around 13 °C with 87 mm of rain and 7.0 hours of sun a day.
Around 13 °C with 87 mm of rain and 7.0 hours of sun a day.
- AprApril17.4°C · 93 mm · 7.6 hr/day
Around 17 °C with 93 mm of rain and 7.6 hours of sun a day.
Around 17 °C with 93 mm of rain and 7.6 hours of sun a day.
- MayMay22.4°C · 101 mm · 7.6 hr/day
Around 22 °C with 101 mm of rain and 7.6 hours of sun a day.
Around 22 °C with 101 mm of rain and 7.6 hours of sun a day.
- JunJune27.5°C · 88 mm · 8.4 hr/day
Around 27 °C with 88 mm of rain and 8.4 hours of sun a day.
Around 27 °C with 88 mm of rain and 8.4 hours of sun a day.
- JulJuly29.8°C · 93 mm · 8.3 hr/day
Around 30 °C with 93 mm of rain and 8.3 hours of sun a day.
Around 30 °C with 93 mm of rain and 8.3 hours of sun a day.
- AugAugust28.8°C · 90 mm · 7.6 hr/day
Around 29 °C with 90 mm of rain and 7.6 hours of sun a day.
Around 29 °C with 90 mm of rain and 7.6 hours of sun a day.
- SepSeptember25.7°C · 78 mm · 7.1 hr/day
Around 26 °C with 78 mm of rain and 7.1 hours of sun a day.
Around 26 °C with 78 mm of rain and 7.1 hours of sun a day.
- OctOctober19.4°C · 80 mm · 6.3 hr/day
Around 19 °C with 80 mm of rain and 6.3 hours of sun a day.
Around 19 °C with 80 mm of rain and 6.3 hours of sun a day.
- NovNovember12.3°C · 66 mm · 5.5 hr/day
Around 12 °C with 66 mm of rain and 5.5 hours of sun a day.
Around 12 °C with 66 mm of rain and 5.5 hours of sun a day.
- DecDecember7.3°C · 84 mm · 4.6 hr/day
Around 7 °C with 84 mm of rain and 4.6 hours of sun a day.
Around 7 °C with 84 mm of rain and 4.6 hours of sun a day.
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