Gladstone, Missouri Climate by Month
Gladstone, Missouri, United States
Hot summers and cold winters, with rain spread through the year.
Hot summers and cold winters, with rain spread through the year: that's Gladstone's climate in short. Afternoon highs range from 39°F (4°C) in January to 90°F (32°C) in July, and January nights average 20°F (-6°C). It gets 38 in (959 mm) of rain a year, spread across the months.
- Warmest month
- 90°F(32°C)
- Average high, July
- Coldest nights
- 20°F(-6°C)
- Average low, January
- Rain per year
- 38 in(959 mm)
- No clear rainy season
- Humidity
- 66%
- Sunniest: July
Best and worst months in Gladstone
Best for weatherThe most comfortable weather comes in May, September and October, with highs around 75°F (24°C) and about 4.2 in (107 mm) of rain a month.
Least pleasantDecember and January are the least pleasant; January is the coldest, with highs of only 39°F (4°C).
Comfort combines how close the afternoon high is to 75°F (24°C) with how much rain falls and how humid it is. See where the weather is best in May.
Temperature and rain through the year
Highs and lows (°F)
Average highAverage low
Rain (in per month)
Gladstone weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 39°F(4°C) | 20°F(-6°C) | 1.1 in(29 mm) | 71% | 1.9 |
| FebFebruary | 45°F(7°C) | 25°F(-4°C) | 1.4 in(35 mm) | 58% | 2.9 |
| MarMarch | 57°F(14°C) | 34°F(1°C) | 2.4 in(61 mm) | 58% | 4.0 |
| AprApril | 67°F(20°C) | 45°F(7°C) | 3.8 in(97 mm) | 59% | 4.7 |
| MayMayBest | 76°F(25°C) | 55°F(13°C) | 5.6 in(141 mm) | 65% | 5.6 |
| JunJune | 85°F(30°C) | 65°F(18°C) | 4.7 in(120 mm) | 68% | 6.2 |
| JulJuly | 90°F(32°C) | 69°F(20°C) | 4.2 in(107 mm) | 68% | 6.4 |
| AugAugust | 89°F(31°C) | 67°F(19°C) | 3.6 in(92 mm) | 68% | 5.6 |
| SepSeptemberBest | 81°F(27°C) | 58°F(14°C) | 4.2 in(106 mm) | 66% | 4.8 |
| OctOctoberBest | 69°F(20°C) | 46°F(8°C) | 2.9 in(74 mm) | 62% | 3.3 |
| NovNovember | 54°F(12°C) | 34°F(1°C) | 2.1 in(54 mm) | 71% | 2.2 |
| DecDecember | 43°F(6°C) | 24°F(-4°C) | 1.7 in(43 mm) | 76% | 1.8 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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