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Built 2026-10-19 (19 October 2026)

Rockford Caa AP Threshold Days by Year (USW00014844)

14 fixed thresholds counted per year at Rockford Caa AP (USW00014844): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Rockford Caa AP Thresholds

  • Rockford Caa AP: days with a maximum temperature at or above 30 C (86 F) in 2 years, most in 1949 with 55.
  • Rockford Caa AP: days with a maximum temperature at or above 90 F (32.2 C) in 2 years, most in 1949 with 24.
  • Rockford Caa AP: days with a maximum temperature at or below 0 C (32 F) in 2 years, most in 1950 with 68.
  • Rockford Caa AP: nights with a minimum temperature at or below 0 C (32 F) in 2 years, most in 1950 with 167.
  • 14 fixed thresholds have at least one qualifying day at Rockford Caa AP.
2 years with a qualifying day
Days at or above 30 C (86 F) per year at Rockford Caa AP Days per year at Rockford Caa AP with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 55 in 1949. 02040601949: 551950: 2019491950
Days per year at Rockford Caa AP with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 55 in 1949.
Days at or above 30 C (86 F) per year at Rockford Caa AP
YearDaysDecade average
19495555
19502020
First to last qualifying date each year at Rockford Caa AP For each year, a bar from the first to the last day at Rockford Caa AP meeting 30 C (86 F). 1949: 3 May 1949 to 8 October 19491950: 24 May 1950 to 17 August 195019491950JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Rockford Caa AP meeting 30 C (86 F).
First to last qualifying date each year at Rockford Caa AP
YearFirst dateLast date
19491949-05-031949-10-08
19501950-05-241950-08-17

Every Fixed Threshold

Fixed thresholds at Rockford Caa AP
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days255194920
35 C (95 F): Days1519495
90 F (32.2 C): Days22419495
0 C (32 F): Ice days (max268195068
0 C (32 F): Frost days (min21671950167
-10 C (14 F): Days with min270195070
-20 C (-4 F): Days with min215195015
-30 C (-22 F): Days with min2119491
20 C (68 F): Tropical nights (min22519491
25 C (77 F): Days with min1119491
10 mm (0.39 in): Days with 10 mm or more rain230195030
25 mm (0.98 in): Days with 25 mm or more rain212195012
50 mm (1.97 in): Days with 50 mm or more rain1219502
10 cm (3.9 in): Days with 10 cm or more snowfall2219491

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1949.

Download the Data

  • Data for Rockford Caa AP 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).