Record highRecord low2026 daily maximum2026 daily minimum
The band shows the record high and record low for each calendar day at Hillsdown. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Hillsdown, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
16.7 C (62.1 F)
-46.7 C (-52.1 F)
n/a
n/a
Feb
17.8 C (64.0 F)
-43.9 C (-47.0 F)
n/a
n/a
Mar
22.8 C (73.0 F)
-39.4 C (-38.9 F)
n/a
n/a
Apr
29.4 C (84.9 F)
-36.7 C (-34.1 F)
n/a
n/a
May
31.1 C (88.0 F)
-19.4 C (-2.9 F)
n/a
n/a
Jun
35.0 C (95.0 F)
-3.9 C (25.0 F)
n/a
n/a
Jul
38.3 C (100.9 F)
0.0 C (32.0 F)
n/a
n/a
Aug
33.9 C (93.0 F)
-2.2 C (28.0 F)
n/a
n/a
Sep
31.7 C (89.1 F)
-16.1 C (3.0 F)
n/a
n/a
Oct
28.9 C (84.0 F)
-26.1 C (-15.0 F)
n/a
n/a
Nov
22.2 C (72.0 F)
-34.4 C (-29.9 F)
n/a
n/a
Dec
17.8 C (64.0 F)
-46.7 C (-52.1 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Hillsdown still stand. 1936 holds the most, with 61.
Standing records at Hillsdown by the year they were set
Year set
Standing records
1904
23
1905
21
1906
35
1907
27
1908
22
1909
24
1910
28
1911
25
1912
16
1913
14
1914
17
1915
28
1916
35
1917
26
1918
30
1919
47
1920
19
1921
22
1922
24
1923
19
1924
33
1925
23
1926
37
1927
14
1928
28
1929
24
1930
32
1931
41
1932
22
1933
20
1934
47
1935
21
1936
61
1937
17
1938
11
1939
32
1940
13
1941
14
1942
18
1943
25
1944
14
1945
14
1946
17
1947
20
1948
23
1949
26
1950
33
1951
54
1952
9
1953
16
1954
50
1955
38
1956
25
1957
32
1958
20
1959
26
1960
12
All-Time Record Progression
2 new records
2 all-time records were set at Hillsdown between 14 July 1937 and 24 July 1959. Each dot is a new record.
When Hillsdown set new all-time records
Date
Kind
Detail
1937-07-14
Record daily precipitation
Record daily precipitation 79.2 mm (3.1 in)
1959-07-24
Record high minimum temperature
Record high minimum temperature 18.3 C (64.9 F)
Wettest Day of Each Month
Jul: 79.2 mm (3.1 in)
The wettest day on record for each calendar month at Hillsdown. The most was 79.2 mm (3.1 in) on 14 July 1937.
Record daily precipitation for each month at Hillsdown
Month
Record daily precipitation (mm)
Date
Jan
12.7 mm (0.5 in)
19 January 1914
Feb
20.3 mm (0.8 in)
26 February 1948
Mar
20.3 mm (0.8 in)
4 March 1958
Apr
76.2 mm (3.0 in)
30 April 1951
May
38.1 mm (1.5 in)
27 May 1946
Jun
57.2 mm (2.3 in)
19 June 1935
Jul
79.2 mm (3.1 in)
14 July 1937
Aug
55.9 mm (2.2 in)
22 August 1947
Sep
38.1 mm (1.5 in)
11 September 1925
Oct
30.0 mm (1.2 in)
24 October 1952
Nov
38.1 mm (1.5 in)
13 November 1914
Dec
26.7 mm (1.1 in)
30 December 1959
Period of Record Coverage
1904 to 1960
Complete yearUnder 90 percent of days
57 years of record at Hillsdown, 1904 to 1960. 1 years have data for under 90 percent of days and are left out of rankings: 1960.
Cooler than the station meanWarmer than the station mean
One stripe for each of 51 complete years at Hillsdown, 1904 to 1957. Blue stripes are years cooler than the station's own mean of 2.4 C (36.3 F); red stripes are warmer. The coolest year was 1950, at -0.8 C (30.5 F), and the warmest was 1931, at 5.3 C (41.6 F). The strongest colour marks a difference of 3.3 C (5.9 F).
Annual mean temperature at Hillsdown as warming stripes, 1904 to 1957
Year
Annual mean temperature
Difference from the station mean
1904
2.0 C
-0.41 C
1905
3.6 C
+1.20 C
1906
3.6 C
+1.13 C
1907
1.5 C
-0.92 C
1909
1.1 C
-1.36 C
1910
3.6 C
+1.19 C
1911
1.5 C
-0.94 C
1912
3.5 C
+1.05 C
1913
2.6 C
+0.15 C
1914
3.0 C
+0.53 C
1915
3.9 C
+1.43 C
1916
1.6 C
-0.87 C
1917
1.8 C
-0.61 C
1918
3.5 C
+1.10 C
1919
2.2 C
-0.24 C
1920
2.6 C
+0.14 C
1921
3.0 C
+0.57 C
1922
2.6 C
+0.19 C
1923
4.1 C
+1.64 C
1924
3.1 C
+0.72 C
1925
3.4 C
+1.01 C
1926
4.0 C
+1.58 C
1927
1.4 C
-1.00 C
1928
4.0 C
+1.62 C
1929
2.7 C
+0.27 C
1930
4.6 C
+2.15 C
1931
5.3 C
+2.89 C
1932
2.9 C
+0.47 C
1933
2.5 C
+0.11 C
1934
4.4 C
+2.02 C
1935
1.0 C
-1.43 C
1936
1.0 C
-1.47 C
1937
1.0 C
-1.40 C
1938
2.6 C
+0.16 C
1939
2.6 C
+0.15 C
1940
1.8 C
-0.59 C
1941
2.9 C
+0.45 C
1942
2.1 C
-0.36 C
1943
2.3 C
-0.10 C
1944
2.8 C
+0.38 C
1945
0.8 C
-1.63 C
1947
1.5 C
-0.94 C
1948
0.6 C
-1.82 C
1950
-0.8 C
-3.23 C
1951
-0.6 C
-3.03 C
1952
2.7 C
+0.31 C
1953
3.3 C
+0.91 C
1954
1.8 C
-0.66 C
1955
0.3 C
-2.13 C
1956
1.9 C
-0.48 C
1957
2.3 C
-0.12 C
The annual mean temperature here has fallen by 0.3 C (0.1 to 0.5) per decade over 1904 to 1957. In Fahrenheit: 0.5 F (0.1 to 0.9) per decade. The slope is a straight line fitted to 51 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Hillsdown
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
-0.3 C (-0.5 to -0.1) per decade
-0.5 F (-0.9 to -0.1) per decade
1904 to 1957
51
Fall
Mean daily maximum
-0.23 C (-0.46 to 0.00) per decade
-0.41 F (-0.82 to -0.01) per decade
1904 to 1957
51
Fall
Mean daily minimum
-0.4 C (-0.6 to -0.1) per decade
-0.6 F (-1.1 to -0.2) per decade
1904 to 1957
51
Fall
A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.
Extremes by Year
1904 to 1960
Yearly extremes at Hillsdown: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
38.3 C (100.9 F)
1924
31.1 C (88.0 F)
57
Coldest night (TNn)
-46.7 C (-52.1 F)
1909
-38.9 C (-38.0 F)
57
Wettest day (Rx1day)
79.2 mm (3.1 in)
1937
30.2 mm (1.2 in)
57
Wettest five days (Rx5day)
127.3 mm (5.0 in)
1932
54.2 mm (2.1 in)
57
Longest dry spell (CDD)
73 days
1913
30 days
57
Hottest day (TXx)
The hottest day of the year at Hillsdown, 1904 to 1960. The record is 38.3 C (100.9 F) in 1924, marked on the chart; the median year is 31.1 C (88.0 F).
Hottest day (TXx) at Hillsdown by year
Year
Hottest day (TXx)
1904
32.2 C (90.0 F)
1905
29.4 C (84.9 F)
1906
31.1 C (88.0 F)
1907
29.4 C (84.9 F)
1908
29.4 C (84.9 F)
1909
28.9 C (84.0 F)
1910
31.7 C (89.1 F)
1911
28.9 C (84.0 F)
1912
31.1 C (88.0 F)
1913
28.9 C (84.0 F)
1914
31.7 C (89.1 F)
1915
28.3 C (82.9 F)
1916
30.6 C (87.1 F)
1917
28.9 C (84.0 F)
1918
32.8 C (91.0 F)
1919
31.7 C (89.1 F)
1920
33.9 C (93.0 F)
1921
35.6 C (96.1 F)
1922
33.3 C (91.9 F)
1923
30.6 C (87.1 F)
1924
38.3 C (100.9 F)
1925
32.2 C (90.0 F)
1926
32.2 C (90.0 F)
1927
33.3 C (91.9 F)
1928
31.1 C (88.0 F)
1929
34.4 C (93.9 F)
1930
35.0 C (95.0 F)
1931
30.6 C (87.1 F)
1932
31.7 C (89.1 F)
1933
35.0 C (95.0 F)
1934
33.3 C (91.9 F)
1935
30.0 C (86.0 F)
1936
32.2 C (90.0 F)
1937
35.0 C (95.0 F)
1938
31.1 C (88.0 F)
1939
31.1 C (88.0 F)
1940
30.6 C (87.1 F)
1941
33.9 C (93.0 F)
1942
29.4 C (84.9 F)
1943
29.4 C (84.9 F)
1944
28.9 C (84.0 F)
1945
30.6 C (87.1 F)
1946
30.6 C (87.1 F)
1947
28.3 C (82.9 F)
1948
28.3 C (82.9 F)
1949
32.2 C (90.0 F)
1950
30.0 C (86.0 F)
1951
30.6 C (87.1 F)
1952
29.4 C (84.9 F)
1953
30.0 C (86.0 F)
1954
31.7 C (89.1 F)
1955
31.7 C (89.1 F)
1956
31.1 C (88.0 F)
1957
30.0 C (86.0 F)
1958
32.2 C (90.0 F)
1959
33.3 C (91.9 F)
1960
33.9 C (93.0 F)
Coldest night (TNn)
The coldest night of the year at Hillsdown, 1904 to 1960. The record is -46.7 C (-52.1 F) in 1909, marked on the chart; the median year is -38.9 C (-38.0 F).
Coldest night (TNn) at Hillsdown by year
Year
Coldest night (TNn)
1904
-37.2 C (-35.0 F)
1905
-38.3 C (-36.9 F)
1906
-35.6 C (-32.1 F)
1907
-43.9 C (-47.0 F)
1908
-33.9 C (-29.0 F)
1909
-46.7 C (-52.1 F)
1910
-36.1 C (-33.0 F)
1911
-43.9 C (-47.0 F)
1912
-40.0 C (-40.0 F)
1913
-37.2 C (-35.0 F)
1914
-41.1 C (-42.0 F)
1915
-29.4 C (-20.9 F)
1916
-43.3 C (-45.9 F)
1917
-43.3 C (-45.9 F)
1918
-38.9 C (-38.0 F)
1919
-37.8 C (-36.0 F)
1920
-41.7 C (-43.1 F)
1921
-37.2 C (-35.0 F)
1922
-40.0 C (-40.0 F)
1923
-38.3 C (-36.9 F)
1924
-46.7 C (-52.1 F)
1925
-33.3 C (-27.9 F)
1926
-33.9 C (-29.0 F)
1927
-38.9 C (-38.0 F)
1928
-39.4 C (-38.9 F)
1929
-42.2 C (-44.0 F)
1930
-38.9 C (-38.0 F)
1931
-32.8 C (-27.0 F)
1932
-37.2 C (-35.0 F)
1933
-35.0 C (-31.0 F)
1934
-37.2 C (-35.0 F)
1935
-43.9 C (-47.0 F)
1936
-43.9 C (-47.0 F)
1937
-40.6 C (-41.1 F)
1938
-41.1 C (-42.0 F)
1939
-43.3 C (-45.9 F)
1940
-35.6 C (-32.1 F)
1941
-35.6 C (-32.1 F)
1942
-36.7 C (-34.1 F)
1943
-44.4 C (-47.9 F)
1944
-30.0 C (-22.0 F)
1945
-37.8 C (-36.0 F)
1946
-36.7 C (-34.1 F)
1947
-42.8 C (-45.0 F)
1948
-35.6 C (-32.1 F)
1949
-41.7 C (-43.1 F)
1950
-43.9 C (-47.0 F)
1951
-41.7 C (-43.1 F)
1952
-39.4 C (-38.9 F)
1953
-34.4 C (-29.9 F)
1954
-44.4 C (-47.9 F)
1955
-38.9 C (-38.0 F)
1956
-43.3 C (-45.9 F)
1957
-40.6 C (-41.1 F)
1958
-37.8 C (-36.0 F)
1959
-35.0 C (-31.0 F)
1960
-38.9 C (-38.0 F)
Wettest day (Rx1day)
The wettest day of the year at Hillsdown, 1904 to 1960. The record is 79.2 mm (3.1 in) in 1937, marked on the chart; the median year is 30.2 mm (1.2 in).
Wettest day (Rx1day) at Hillsdown by year
Year
Wettest day (Rx1day)
1904
26.4 mm (1.0 in)
1905
54.4 mm (2.1 in)
1906
31.2 mm (1.2 in)
1907
34.0 mm (1.3 in)
1908
44.5 mm (1.8 in)
1909
40.1 mm (1.6 in)
1910
38.1 mm (1.5 in)
1911
28.2 mm (1.1 in)
1912
39.6 mm (1.6 in)
1913
13.0 mm (0.5 in)
1914
38.1 mm (1.5 in)
1915
28.4 mm (1.1 in)
1916
22.6 mm (0.9 in)
1917
27.2 mm (1.1 in)
1918
17.5 mm (0.7 in)
1919
26.2 mm (1.0 in)
1920
11.7 mm (0.5 in)
1921
15.2 mm (0.6 in)
1922
20.3 mm (0.8 in)
1923
16.8 mm (0.7 in)
1924
32.5 mm (1.3 in)
1925
38.1 mm (1.5 in)
1926
28.2 mm (1.1 in)
1927
14.7 mm (0.6 in)
1928
17.3 mm (0.7 in)
1929
19.1 mm (0.8 in)
1930
22.6 mm (0.9 in)
1931
21.1 mm (0.8 in)
1932
74.9 mm (2.9 in)
1933
41.7 mm (1.6 in)
1934
26.7 mm (1.1 in)
1935
57.2 mm (2.3 in)
1936
29.5 mm (1.2 in)
1937
79.2 mm (3.1 in)
1938
43.2 mm (1.7 in)
1939
36.1 mm (1.4 in)
1940
33.0 mm (1.3 in)
1941
25.9 mm (1.0 in)
1942
48.3 mm (1.9 in)
1943
20.3 mm (0.8 in)
1944
49.5 mm (1.9 in)
1945
27.2 mm (1.1 in)
1946
48.3 mm (1.9 in)
1947
55.9 mm (2.2 in)
1948
20.3 mm (0.8 in)
1949
66.3 mm (2.6 in)
1950
49.8 mm (2.0 in)
1951
76.2 mm (3.0 in)
1952
30.2 mm (1.2 in)
1953
47.5 mm (1.9 in)
1954
30.5 mm (1.2 in)
1955
27.2 mm (1.1 in)
1956
48.5 mm (1.9 in)
1957
22.9 mm (0.9 in)
1958
28.4 mm (1.1 in)
1959
55.6 mm (2.2 in)
1960
23.6 mm (0.9 in)
Wettest five days (Rx5day)
The wettest five days of the year at Hillsdown, 1904 to 1960. The record is 127.3 mm (5.0 in) in 1932, marked on the chart; the median year is 54.2 mm (2.1 in).
Wettest five days (Rx5day) at Hillsdown by year
Year
Wettest five days (Rx5day)
1904
36.0 mm (1.4 in)
1905
124.6 mm (4.9 in)
1906
54.8 mm (2.2 in)
1907
51.6 mm (2.0 in)
1908
59.3 mm (2.3 in)
1909
70.7 mm (2.8 in)
1910
74.6 mm (2.9 in)
1911
50.3 mm (2.0 in)
1912
74.4 mm (2.9 in)
1913
28.4 mm (1.1 in)
1914
44.2 mm (1.7 in)
1915
38.8 mm (1.5 in)
1916
51.7 mm (2.0 in)
1917
43.2 mm (1.7 in)
1918
33.3 mm (1.3 in)
1919
56.7 mm (2.2 in)
1920
25.4 mm (1.0 in)
1921
35.5 mm (1.4 in)
1922
27.9 mm (1.1 in)
1923
31.3 mm (1.2 in)
1924
47.8 mm (1.9 in)
1925
43.2 mm (1.7 in)
1926
54.2 mm (2.1 in)
1927
25.4 mm (1.0 in)
1928
35.8 mm (1.4 in)
1929
24.2 mm (1.0 in)
1930
24.1 mm (0.9 in)
1931
35.3 mm (1.4 in)
1932
127.3 mm (5.0 in)
1933
45.0 mm (1.8 in)
1934
35.8 mm (1.4 in)
1935
73.5 mm (2.9 in)
1936
39.4 mm (1.6 in)
1937
109.9 mm (4.3 in)
1938
81.1 mm (3.2 in)
1939
64.3 mm (2.5 in)
1940
57.6 mm (2.3 in)
1941
55.9 mm (2.2 in)
1942
60.2 mm (2.4 in)
1943
48.3 mm (1.9 in)
1944
101.9 mm (4.0 in)
1945
50.1 mm (2.0 in)
1946
89.7 mm (3.5 in)
1947
65.3 mm (2.6 in)
1948
53.3 mm (2.1 in)
1949
83.6 mm (3.3 in)
1950
89.4 mm (3.5 in)
1951
115.3 mm (4.5 in)
1952
67.4 mm (2.7 in)
1953
58.7 mm (2.3 in)
1954
84.9 mm (3.3 in)
1955
60.3 mm (2.4 in)
1956
68.6 mm (2.7 in)
1957
30.5 mm (1.2 in)
1958
68.3 mm (2.7 in)
1959
61.2 mm (2.4 in)
1960
50.6 mm (2.0 in)
Longest dry spell (CDD)
The longest dry spell of the year at Hillsdown, 1904 to 1960. The record is 73 days in 1913, marked on the chart; the median year is 30 days.
Longest dry spell (CDD) at Hillsdown by year
Year
Longest dry spell (CDD)
1904
48 days
1905
28 days
1906
33 days
1907
26 days
1908
23 days
1909
19 days
1910
24 days
1911
16 days
1912
21 days
1913
73 days
1914
30 days
1915
36 days
1916
21 days
1917
39 days
1918
49 days
1919
29 days
1920
19 days
1921
54 days
1922
43 days
1923
69 days
1924
24 days
1925
25 days
1926
27 days
1927
15 days
1928
47 days
1929
56 days
1930
29 days
1931
35 days
1932
21 days
1933
30 days
1934
48 days
1935
27 days
1936
21 days
1937
34 days
1938
22 days
1939
42 days
1940
18 days
1941
31 days
1942
26 days
1943
40 days
1944
44 days
1945
30 days
1946
24 days
1947
20 days
1948
51 days
1949
57 days
1950
29 days
1951
36 days
1952
35 days
1953
55 days
1954
55 days
1955
24 days
1956
23 days
1957
22 days
1958
38 days
1959
38 days
1960
23 days
Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.
Frost Dates and Growing Season
51 years with a frost
Across 51 years with a frost, the median last spring frost at Hillsdown falls on 4 June and the median first autumn frost on 4 September, which leaves a median of 93 days between them.
Fitted over all years, the growing season changes by -0.3 days per decade at this station.
Frost dates and growing season at Hillsdown
Measure
Median, all years
Earliest period
Recent period (1926 to 1957)
Recent against earliest
Fitted trend
Last spring frost
4 June
n/a
4 June
n/a
+0.4 days per decade
First autumn frost
4 September
n/a
5 September
n/a
0.0 days per decade
Growing days
93 days
n/a
91 days
n/a
-0.3 days per decade
A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.
Rainfall Return Levels
56 years, 1904 to 1959
A day with at least 31.9 mm (1.3 in) of rain is expected about once in 2 years. A day with at least 91.2 mm (3.6 in) of rain is expected about once in 100 years.
Rainfall return levels at Hillsdown: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
31.9 mm (1.3 in)
5 years
46.5 mm (1.8 in)
10 years
56.7 mm (2.2 in)
25 years
70.1 mm (2.8 in)
50 years
80.5 mm (3.2 in)
100 years
91.2 mm (3.6 in)
Longer than the 56 years of record
The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 56 years of values from 1904 to 1959.
A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.
The largest wettest-day totals in the fit: 79.2 mm (3.1 in) in 1937; 76.2 mm (3.0 in) in 1951; 74.9 mm (2.9 in) in 1932.
Station Changes
3 suspected
3 changes were suspected in the annual mean temperature of Hillsdown, at 1924, 1935 and 1952. Each is measured against neighbouring stations.
Relative to 5 neighbouring stations, the station's annual mean temperature from 1924 ran 0.7 C (1.2 F) higher than in the years before (likely change).
Relative to 5 neighbouring stations, the station's annual mean temperature from 1935 ran 1.5 C (2.8 F) lower than in the years before (likely change).
Relative to 5 neighbouring stations, the station's annual mean temperature from 1952 ran 0.6 C (1.0 F) higher than in the years before (likely change).
Suspected changes in the annual mean temperature at Hillsdown, against neighbouring stations
Year
Shift (C)
Shift (F)
Strength
Neighbours
1924
+0.7
+1.2
likely
5
1935
-1.5
-2.8
likely
5
1952
+0.6
+1.0
likely
5
Possible change at the station (a move, a new instrument or a new site); the record is kept as measured. A "likely" change has a larger test statistic than a "possible" one. Neither says why the station differs from its neighbours. How changes are found, and the largest ones.
Download the Data
Data for Hillsdown standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Hillsdown 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). Records are computed by this site and are not official.