Johnson City Climate by Month
Johnson City, Tennessee, United States
Hot summers and cold winters, with rain spread through the year.
Johnson City has hot summers and cold winters, with rain spread through the year. July is the warmest month, with highs around 87°F (30°C); January is the coolest at 47°F (8°C), and nights dip to 26°F (-3°C). It gets 44 in (1105 mm) of rain a year, spread across the months.
- Warmest month
- 87°F(30°C)
- Average high, July
- Coldest nights
- 26°F(-3°C)
- Average low, January
- Rain per year
- 44 in(1105 mm)
- No clear rainy season
- Humidity
- 68%
- Sunniest: July
Best and worst months in Johnson City
Best for weatherThe most comfortable weather comes in May and October, with highs around 74°F (23°C) and about 3.2 in (82 mm) of rain a month.
Least pleasantDecember and January are the least pleasant; January is the coldest, with highs of only 47°F (8°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 October.
Temperature and rain through the year
Highs and lows (°F)
Average highAverage low
Rain (in per month)
Johnson City weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 47°F(8°C) | 26°F(-3°C) | 3.3 in(85 mm) | 68% | 2.1 |
| FebFebruary | 51°F(11°C) | 29°F(-1°C) | 3.3 in(84 mm) | 59% | 2.7 |
| MarMarch | 60°F(16°C) | 36°F(2°C) | 3.9 in(100 mm) | 62% | 3.9 |
| AprApril | 70°F(21°C) | 44°F(6°C) | 3.9 in(99 mm) | 63% | 5.0 |
| MayMayBest | 77°F(25°C) | 53°F(11°C) | 3.9 in(99 mm) | 71% | 5.7 |
| JunJune | 84°F(29°C) | 60°F(16°C) | 4.0 in(101 mm) | 71% | 5.8 |
| JulJuly | 87°F(30°C) | 64°F(18°C) | 4.6 in(118 mm) | 70% | 5.8 |
| AugAugust | 85°F(30°C) | 63°F(17°C) | 3.7 in(94 mm) | 73% | 5.4 |
| SepSeptember | 81°F(27°C) | 57°F(14°C) | 3.4 in(86 mm) | 70% | 4.6 |
| OctOctoberBest | 71°F(22°C) | 45°F(7°C) | 2.5 in(64 mm) | 67% | 3.5 |
| NovNovember | 59°F(15°C) | 34°F(1°C) | 3.1 in(79 mm) | 64% | 2.4 |
| DecDecember | 50°F(10°C) | 29°F(-2°C) | 3.8 in(96 mm) | 73% | 1.9 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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