Peak score
9.8/10
Best months in Gresham, United States
Best Time to Visit Gresham, United States
Climate guide for Gresham, United States — updated 2026
Travel window June, July, August, September Peak: July · 9.8/10 climate score
Months to avoid January, February, March, December
Gresham on the map · best months to visit
Gresham, United States
- Best monthsJune, July, August, September
- Avoid monthsJanuary, February, March, December
- Visit score now8/10
- Coordinates
- 45.50°, -122.43°
Quick answer
Plan your trip for June, July, August, September. Expect average highs near 26°C, lows near 13°C, and about 5 rainy days a month. Skip January, February, March, December when heavy rainfall sets in.
Warmest month
29°C
Coldest month
1°C
Wettest month
20d
Travel score by month
Each score weighs temperature comfort, rain, humidity, and outdoor conditions. Higher is better.
1 Jan
1.3 Feb
3 Mar
4.5 Apr
7 May
8.3 Jun
9.8 Jul
9.8 Aug
8.3 Sep
6.5 Oct
3.9 Nov
1 Dec
Excellent (7–10) Mixed (5–6) Tough (0–4)
Month-by-Month Recommendation
Tap any month to open its full weather page. Cards highlight score, temperature, rain, and comfort.
January
1 /10
Poor
8°C / 2°C 19 rainy days Comfort Score: 2.5/10
February
1.3 /10
Poor
8°C / 1°C 18 rainy days Comfort Score: 2.5/10
March
3 /10
Poor
12°C / 3°C 20 rainy days Comfort Score: 3/10
April
4.5 /10
Fair
16°C / 5°C 16 rainy days Comfort Score: 4.5/10
May
7 /10
Great
20°C / 9°C 11 rainy days Comfort Score: 7/10
June Best
8.3 /10
Great
24°C / 12°C 9 rainy days Comfort Score: 8.8/10
July Best
9.8 /10
Excellent
28°C / 14°C 2 rainy days Comfort Score: 10/10
August Best
9.8 /10
Excellent
29°C / 15°C 2 rainy days Comfort Score: 10/10
September Best
8.3 /10
Great
25°C / 12°C 8 rainy days Comfort Score: 8.8/10
October
6.5 /10
Good
17°C / 8°C 14 rainy days Comfort Score: 7/10
November
3.9 /10
Poor
11°C / 5°C 18 rainy days Comfort Score: 4.5/10
December
1 /10
Poor
8°C / 2°C 20 rainy days Comfort Score: 2.5/10
Climate normals
Compare the monthly shape of temperature highs/lows and rainfall before locking in your dates.
Monthly Temperatures
HighLow
Line chart showing monthly temperatures. Jan: 8°C / 2°C . Feb: 8°C / 1°C . Mar: 12°C / 3°C . Apr: 16°C / 5°C . May: 20°C / 9°C . Jun: 24°C / 12°C . Jul: 28°C / 14°C . Aug: 29°C / 15°C . Sep: 25°C / 12°C . Oct: 17°C / 8°C . Nov: 11°C / 5°C . Dec: 8°C / 2°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 224 mm. Feb: 193 mm. Mar: 174 mm. Apr: 138 mm. May: 75 mm. Jun: 61 mm. Jul: 6 mm. Aug: 11 mm. Sep: 58 mm. Oct: 163 mm. Nov: 218 mm. Dec: 258 mm.
Season by Season
Season cards explain why scores rise and fall, with a representative month picked for each.
Spring
Avg score 4.8/10Mar, Apr, May
Average highs of 16°C (61°F) with 16 rainy days per month. Climate score: 4.8/10.
This month falls at the beginning of Spring.
Weather conditions this month are less ideal compared to other times of the year. Indoor activities or shorter outings may be more comfortable.
Summer
Avg score 9.3/10Jun, Jul, Aug
Average highs of 27°C (81°F) with 4 rainy days per month. Climate score: 9.3/10.
This month falls at the beginning of Summer.
Weather conditions this month are among the best of the year, making it a popular time for outdoor activities.
Autumn
Avg score 6.2/10Sep, Oct, Nov
Average highs of 18°C (64°F) with 13 rainy days per month. Climate score: 6.2/10.
This month falls at the beginning of Autumn.
Weather conditions this month are among the best of the year, making it a popular time for outdoor activities.
Winter
Avg score 1.1/10Dec, Jan, Feb
Average highs of 8°C (46°F) with 19 rainy days per month. Climate score: 1.1/10.
This month falls at the middle of Winter. Cold conditions dominate the month.
Weather conditions this month are less ideal compared to other times of the year. Indoor activities or shorter outings may be more comfortable.
Frequently Asked Questions
The best months to visit Gresham are June, July, August, September, when temperatures are comfortable and rainfall is low.
Consider avoiding January, February, March, December due to heavy rainfall.
Packing depends on the season. In peak months (June, July, August, September), light layers and sun protection are typical essentials.
Yes! June earns a climate score of 8.3/10 and is one of the best months to visit Gresham. Warm conditions, with highs averaging 23.5°C (74°F). Temperatures drop noticeably between day and night.
Yes! July earns a climate score of 9.8/10 and is one of the best months to visit Gresham. Hot conditions, with highs reaching 28.1°C (83°F) and afternoons the warmest part of the day. Rain is rare, falling on about 2 days this month. Temperatures drop noticeably between day and night.