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Port Hedland Post Office Threshold Days by Year

14 fixed thresholds counted per year at Port Hedland Post Office (ASN00004002): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Port Hedland Post Office Thresholds

  • Port Hedland Post Office: days with 10 mm (0.39 in) or more of precipitation in 41 years, most in 1921 with 16.
  • Port Hedland Post Office: days with 25 mm (0.98 in) or more of precipitation in 40 years, most in 1943 with 11.
  • Port Hedland Post Office: days with a maximum temperature at or above 30 C (86 F) in 35 years, most in 1946 with 281.
  • Port Hedland Post Office: days with a maximum temperature at or above 35 C (95 F) in 35 years, most in 1945 with 146.
  • 14 fixed thresholds have at least one qualifying day at Port Hedland Post Office.
35 years with a qualifying day
Days at or above 30 C (86 F) per year at Port Hedland Post Office Days per year at Port Hedland Post Office with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 281 in 1946. 01002003001913: 2101914: 2361915: 2231916: 2451917: 2121918: 2351919: 2421920: 2101921: 2201922: 2291923: 2171924: 2411925: 2301926: 2261927: 2351928: 2411929: 2191930: 2331931: 2161932: 2201933: 2491934: 2021935: 2331936: 2581937: 2491938: 2761939: 2581940: 2691941: 2441942: 2441943: 2321944: 2711945: 2781946: 2811947: 271191319171921192519291933193719411945
Days per year at Port Hedland Post Office with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 281 in 1946.
Days at or above 30 C (86 F) per year at Port Hedland Post Office
YearDaysDecade average
1913210229
1914236229
1915223229
1916245229
1917212229
1918235229
1919242229
1920210226.8
1921220226.8
1922229226.8
1923217226.8
1924241226.8
1925230226.8
1926226226.8
1927235226.8
1928241226.8
1929219226.8
1930233239.4
1931216239.4
1932220239.4
1933249239.4
1934202239.4
1935233239.4
1936258239.4
1937249239.4
1938276239.4
1939258239.4
1940269261.3
1941244261.3
1942244261.3
1943232261.3
1944271261.3
1945278261.3
1946281261.3
1947271261.3
First to last qualifying date each year at Port Hedland Post Office For each year, a bar from the first to the last day at Port Hedland Post Office meeting 30 C (86 F). 1913: 1 January 1913 to 20 December 19131914: 1 February 1914 to 31 December 19141915: 1 January 1915 to 31 December 19151916: 1 January 1916 to 31 December 19161917: 1 January 1917 to 31 December 19171918: 1 January 1918 to 31 December 19181919: 1 January 1919 to 31 December 19191920: 1 January 1920 to 31 December 19201921: 1 January 1921 to 31 December 19211922: 1 January 1922 to 31 December 19221923: 1 January 1923 to 31 December 19231924: 1 January 1924 to 31 December 19241925: 1 January 1925 to 31 December 19251926: 1 January 1926 to 31 December 19261927: 1 January 1927 to 31 December 19271928: 1 January 1928 to 31 December 19281929: 1 January 1929 to 31 December 19291930: 1 January 1930 to 31 December 19301931: 1 January 1931 to 31 December 19311932: 1 January 1932 to 31 December 19321933: 1 January 1933 to 31 December 19331934: 1 January 1934 to 30 December 19341935: 3 January 1935 to 31 December 19351936: 1 January 1936 to 31 December 19361937: 1 January 1937 to 31 December 19371938: 1 January 1938 to 31 December 19381939: 1 January 1939 to 31 December 19391940: 1 January 1940 to 31 December 19401941: 1 January 1941 to 31 December 19411942: 1 January 1942 to 31 December 19421943: 1 January 1943 to 31 December 19431944: 1 January 1944 to 31 December 19441945: 1 January 1945 to 31 December 19451946: 1 January 1946 to 31 December 19461947: 1 January 1947 to 31 December 19471913191819231928193319381943JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Port Hedland Post Office meeting 30 C (86 F).
First to last qualifying date each year at Port Hedland Post Office
YearFirst dateLast date
19131913-01-011913-12-20
19141914-02-011914-12-31
19151915-01-011915-12-31
19161916-01-011916-12-31
19171917-01-011917-12-31
19181918-01-011918-12-31
19191919-01-011919-12-31
19201920-01-011920-12-31
19211921-01-011921-12-31
19221922-01-011922-12-31
19231923-01-011923-12-31
19241924-01-011924-12-31
19251925-01-011925-12-31
19261926-01-011926-12-31
19271927-01-011927-12-31
19281928-01-011928-12-31
19291929-01-011929-12-31
19301930-01-011930-12-31
19311931-01-011931-12-31
19321932-01-011932-12-31
19331933-01-011933-12-31
19341934-01-011934-12-30
19351935-01-031935-12-31
19361936-01-011936-12-31
19371937-01-011937-12-31
19381938-01-011938-12-31
19391939-01-011939-12-31
19401940-01-011940-12-31
19411941-01-011941-12-31
19421942-01-011942-12-31
19431943-01-011943-12-31
19441944-01-011944-12-31
19451945-01-011945-12-31
19461946-01-011946-12-31
19471947-01-011947-12-31

Every Fixed Threshold

Fixed thresholds at Port Hedland Post Office
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days352811946271
35 C (95 F): Days351461945104
40 C (104 F): Days3527193812
45 C (113 F): Days11419412
90 F (32.2 C): Days352321944203
100 F (37.8 C): Days3558194029
110 F (43.3 C): Days21619404
20 C (68 F): Tropical nights (min352251919211
25 C (77 F): Days with min35133192681
10 mm (0.39 in): Days with 10 mm or more rain4116192111
25 mm (0.98 in): Days with 25 mm or more rain401119434
50 mm (1.97 in): Days with 50 mm or more rain32719421
100 mm (3.94 in): Days with 100 mm or more rain16219371
200 mm (7.87 in): Days with 200 mm or more rain4119131

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1913.

Download the Data

  • Data for Port Hedland Post Office 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 2026-10-15 (15 October 2026). Threshold counts are computed by this site.

Data as of . Last revised (2026-10-15).