Built 2026-10-19 (19 October 2026)

North Bay Threshold Days by Year (CA006085682)

16 fixed thresholds counted per year at North Bay (CA006085682): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for North Bay Thresholds

  • North Bay: nights with a minimum temperature at or below 0 C (32 F) in 63 years, most in 1925 with 197.
  • North Bay: nights with a minimum temperature at or below -10 C (14 F) in 63 years, most in 1926 with 116.
  • North Bay: nights with a minimum temperature at or below -20 C (-4 F) in 63 years, most in 1917 with 58.
  • North Bay: nights with a minimum temperature at or below -30 C (-22 F) in 61 years, most in 1917 with 18.
  • 16 fixed thresholds have at least one qualifying day at North Bay.
55 years with a qualifying day
Days at or above 30 C (86 F) per year at North Bay Days per year at North Bay with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 28 in 1919. 01020301896: 31897: 131916: 231917: 81918: 81919: 281925: 51926: 11927: 31928: 11929: 51931: 121932: 41933: 151934: 41936: 81937: 231938: 101939: 111940: 81941: 131942: 81943: 111944: 171945: 131946: 91947: 251948: 111949: 161950: 21951: 21952: 81953: 111955: 281956: 31957: 21958: 11959: 91962: 91963: 181964: 151966: 91967: 21968: 71969: 71971: 51972: 11973: 81974: 41975: 121977: 61978: 91979: 41980: 11981: 71896192519321939194519511958196719741981
Days per year at North Bay with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 28 in 1919.
Days at or above 30 C (86 F) per year at North Bay
YearDaysDecade average
189638
1897138
19162316.8
1917816.8
1918816.8
19192816.8
192553
192613
192733
192813
192953
19311210.9
1932410.9
19331510.9
1934410.9
1936810.9
19372310.9
19381010.9
19391110.9
1940813.1
19411313.1
1942813.1
19431113.1
19441713.1
19451313.1
1946913.1
19472513.1
19481113.1
19491613.1
195027.3
195127.3
195287.3
1953117.3
1955287.3
195637.3
195727.3
195817.3
195997.3
196299.6
1963189.6
1964159.6
196699.6
196729.6
196879.6
196979.6
197156.1
197216.1
197386.1
197446.1
1975126.1
197766.1
197896.1
197946.1
198014
198174
First to last qualifying date each year at North Bay For each year, a bar from the first to the last day at North Bay meeting 30 C (86 F). 1896: 9 August 1896 to 12 August 18961897: 30 June 1897 to 11 September 18971916: 3 July 1916 to 21 August 19161917: 22 July 1917 to 1 August 19171918: 18 July 1918 to 7 August 19181919: 31 May 1919 to 6 August 19191925: 7 June 1925 to 19 August 19251926: 1 August 1926 to 1 August 19261927: 30 June 1927 to 2 July 19271928: 9 July 1928 to 9 July 19281929: 18 June 1929 to 5 September 19291931: 29 June 1931 to 12 September 19311932: 5 June 1932 to 31 August 19321933: 8 June 1933 to 3 September 19331934: 3 June 1934 to 25 July 19341936: 7 July 1936 to 14 July 19361937: 2 May 1937 to 30 August 19371938: 20 June 1938 to 19 August 19381939: 4 July 1939 to 15 September 19391940: 22 July 1940 to 15 August 19401941: 21 June 1941 to 29 July 19411942: 10 June 1942 to 30 August 19421943: 25 June 1943 to 1 September 19431944: 24 May 1944 to 15 August 19441945: 23 June 1945 to 8 September 19451946: 27 June 1946 to 20 September 19461947: 10 June 1947 to 10 September 19471948: 5 July 1948 to 6 September 19481949: 2 June 1949 to 27 August 19491950: 25 May 1950 to 12 July 19501951: 26 May 1951 to 18 June 19511952: 6 July 1952 to 13 September 19521953: 20 June 1953 to 4 September 19531955: 6 June 1955 to 21 August 19551956: 11 June 1956 to 14 June 19561957: 18 June 1957 to 22 June 19571958: 6 August 1958 to 6 August 19581959: 10 June 1959 to 9 September 19591962: 17 May 1962 to 31 August 19621963: 5 June 1963 to 28 July 19631964: 29 June 1964 to 28 July 19641966: 24 June 1966 to 13 July 19661967: 4 June 1967 to 22 July 19671968: 14 July 1968 to 24 August 19681969: 27 June 1969 to 31 August 19691971: 28 June 1971 to 8 August 19711972: 12 July 1972 to 12 July 19721973: 7 July 1973 to 4 September 19731974: 6 June 1974 to 21 August 19741975: 23 May 1975 to 1 August 19751977: 21 May 1977 to 20 July 19771978: 26 May 1978 to 16 August 19781979: 14 July 1979 to 24 July 19791980: 5 August 1980 to 5 August 19801981: 6 July 1981 to 16 July 198118961926193419421949195719671975JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at North Bay meeting 30 C (86 F).
First to last qualifying date each year at North Bay
YearFirst dateLast date
18961896-08-091896-08-12
18971897-06-301897-09-11
19161916-07-031916-08-21
19171917-07-221917-08-01
19181918-07-181918-08-07
19191919-05-311919-08-06
19251925-06-071925-08-19
19261926-08-011926-08-01
19271927-06-301927-07-02
19281928-07-091928-07-09
19291929-06-181929-09-05
19311931-06-291931-09-12
19321932-06-051932-08-31
19331933-06-081933-09-03
19341934-06-031934-07-25
19361936-07-071936-07-14
19371937-05-021937-08-30
19381938-06-201938-08-19
19391939-07-041939-09-15
19401940-07-221940-08-15
19411941-06-211941-07-29
19421942-06-101942-08-30
19431943-06-251943-09-01
19441944-05-241944-08-15
19451945-06-231945-09-08
19461946-06-271946-09-20
19471947-06-101947-09-10
19481948-07-051948-09-06
19491949-06-021949-08-27
19501950-05-251950-07-12
19511951-05-261951-06-18
19521952-07-061952-09-13
19531953-06-201953-09-04
19551955-06-061955-08-21
19561956-06-111956-06-14
19571957-06-181957-06-22
19581958-08-061958-08-06
19591959-06-101959-09-09
19621962-05-171962-08-31
19631963-06-051963-07-28
19641964-06-291964-07-28
19661966-06-241966-07-13
19671967-06-041967-07-22
19681968-07-141968-08-24
19691969-06-271969-08-31
19711971-06-281971-08-08
19721972-07-121972-07-12
19731973-07-071973-09-04
19741974-06-061974-08-21
19751975-05-231975-08-01
19771977-05-211977-07-20
19781978-05-261978-08-16
19791979-07-141979-07-24
19801980-08-051980-08-05
19811981-07-061981-07-16

Every Fixed Threshold

Fixed thresholds at North Bay
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days552819197
35 C (95 F): Days7419364
90 F (32.2 C): Days331619191
0 C (32 F): Ice days (max59113195569
0 C (32 F): Frost days (min631971925162
-10 C (14 F): Days with min63116192665
-20 C (-4 F): Days with min6358191725
-30 C (-22 F): Days with min611819177
-40 C (-40 F): Days with min7219341
20 C (68 F): Tropical nights (min522018973
25 C (77 F): Days with min1418974
10 mm (0.39 in): Days with 10 mm or more rain5737191934
25 mm (0.98 in): Days with 25 mm or more rain561319476
50 mm (1.97 in): Days with 50 mm or more rain18319471
10 cm (3.9 in): Days with 10 cm or more snowfall571019756
25 cm (9.8 in): Days with 25 cm or more snowfall5219511

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1896.

Download the Data

  • Data for North Bay 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 (2026-10-17).