Monthly climate averages for Mill Creek, United States. Based on 10-year ERA5 reanalysis data.
Csb Warm-Summer Mediterranean
Climate OverviewMill Creek, United States in July has warm conditions, with highs averaging 23.5°C (74°F).
This month falls at the middle of Summer.
Daily highs in July gradually rise from around 22°C (71°F) at the start to 26°C (78°F) by month's end.
July sees fairly even rainfall, totalling about 21 mm across the month.
Expect around 11.6h of sunshine at the start of July, increasing to 13.0h by the end.
The warmest days tend to fall around the 31th, averaging 26°C (79°F).
Compared to June, this month is about 4°C warmer with 5 fewer rainy days.
Daily averages based on historical data (2016–2025)
Daytime temperatures around 24°C (74°F) are ideal for full-day outdoor exploration.
Rain is uncommon in this month, so most days stay dry from morning through evening.
Recent yearly records for July have stayed close to the long-run average.
| Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 7°C / 2°C | 4°C / -1°C | 18days (184 mm) Wet | 4.3h Fair | 83% Humid | 1.2 Low | Wet | View Details |
| February | 7°C / 2°C | 4°C / -2°C | 17days (147 mm) Wet | 5.4h Fair | 82% Humid | 1.9 Low | Poor | View Details |
| March | 10°C / 3°C | 7°C / 0°C | 17days (129 mm) Wet | 7.6h Good | 80% Humid | 3.3 Moderate | Poor | View Details |
| April | 13°C / 5°C | 11°C / 2°C | 16days (107 mm) Wet | 9.4h Good | 77% Humid | 4.8 Moderate | Fair | View Details |
| May | 17°C / 9°C | 16°C / 7°C | 12days (79 mm) Wet | 11h Excellent | 76% Humid | 5.6 High | Good | View Details |
| June | 20°C / 11°C | 20°C / 10°C | 10days (70 mm) Wet | 11.7h Excellent | 74% Muggy | 6.3 High | Good | View Details |
| July best | 24°C / 14°C | 24°C / 14°C | 5days (21 mm) Good | 12.7h Excellent | 70% Muggy | 6.9 High | Excellent | View Details |
| August best | 24°C / 15°C | 25°C / 14°C | 5days (31 mm) Good | 11.5h Excellent | 72% Muggy | 5.9 High | Excellent | View Details |
| September best | 20°C / 12°C | 20°C / 11°C | 9days (73 mm) Wet | 9.6h Good | 77% Humid | 4.6 Moderate | Excellent | View Details |
| October | 14°C / 8°C | 13°C / 6°C | 16days (151 mm) Wet | 7h Good | 83% Humid | 2.8 Moderate | Fair | View Details |
| November | 10°C / 5°C | 7°C / 2°C | 19days (189 mm) Wet | 4.7h Fair | 85% Humid | 1.5 Low | Wet | View Details |
| December | 7°C / 3°C | 4°C / -1°C | 19days (205 mm) Wet | 3.5h Poor | 85% Humid | 0.9 Low | Wet | View Details |
Dress in layers — a mix of long sleeves, light sweaters, and a versatile jacket works best for changeable conditions.
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