Daily records
Page built 2026-10-19
Data as of 2025-12-31
Search
Built 2026-10-19 (19 October 2026)

Fairfax Threshold Days by Year (USC00452722)

3 fixed thresholds counted per year at Fairfax (USC00452722): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Fairfax Thresholds

  • Fairfax: days with 10 mm (0.39 in) or more of precipitation in 6 years, most in 1917 with 58.
  • Fairfax: days with 25 mm (0.98 in) or more of precipitation in 6 years, most in 1917 with 21.
  • Fairfax: days with 50 mm (1.97 in) or more of precipitation in 3 years, most in 1918 with 5.
  • 3 fixed thresholds have at least one qualifying day at Fairfax.
6 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Fairfax Days per year at Fairfax with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 58 in 1917. 02040601917: 581918: 501919: 551920: 581921: 521922: 13191719181919192019211922
Days per year at Fairfax with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 58 in 1917.
Days with 10 mm (0.39 in) or more of precipitation per year at Fairfax
YearDaysDecade average
19175854.3
19185054.3
19195554.3
19205841
19215241
19221341
First to last qualifying date each year at Fairfax For each year, a bar from the first to the last day at Fairfax meeting 10 mm (0.39 in). 1917: 2 January 1917 to 31 December 19171918: 1 January 1918 to 20 December 19181919: 17 January 1919 to 24 December 19191920: 16 January 1920 to 30 December 19201921: 13 January 1921 to 13 December 19211922: 25 January 1922 to 30 December 1922191719181919192019211922JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Fairfax meeting 10 mm (0.39 in).
First to last qualifying date each year at Fairfax
YearFirst dateLast date
19171917-01-021917-12-31
19181918-01-011918-12-20
19191919-01-171919-12-24
19201920-01-161920-12-30
19211921-01-131921-12-13
19221922-01-251922-12-30

Every Fixed Threshold

Fixed thresholds at Fairfax
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain658191713
25 mm (0.98 in): Days with 25 mm or more rain62119173
50 mm (1.97 in): Days with 50 mm or more rain3519183

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1917.

Download the Data

  • Data for Fairfax threshold days by year: CSV or JSON. Field meanings are on the data page.

Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-17 (17 October 2026). Threshold counts are computed by this site.

Data as of . Last revised (2025-12-31).