Delhi Cda Weather Records (CA006131982)

Record envelope, standing records and threshold days for Delhi Cda (CA006131982), Ontario, Canada, with 64 years of record.

Key Facts for Delhi Cda

Delhi Cda (CA006131982) is a weather station in Ontario, Canada at 42.87 latitude and -80.55 longitude, 232 m (761 ft) above sea level.
The station reports from 1934 to 1997, 64 years of record.
1,464 records set at Delhi Cda still stand.
Records are tracked for tmax, tmin, prcp, snow: an element needs 30 years of data to be eligible.
Delhi Cda set a daily record snowfall of 10.3 cm (4.1 in) on 28 December 1983.

About the Station

Location: Ontario, Canada, 42.87 latitude, -80.55 longitude.
Elevation: 232 m (761 ft).
Period of record: 1934 to 1997, 64 years.
Eligible elements: tmax, tmin, prcp, snow.

Daily Record Envelope and 2026

0 days at or beyond a record

The band shows the record high and record low for each calendar day at Delhi Cda. 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 Delhi Cda, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	18.3 C (64.9 F)	-33.9 C (-29.0 F)	n/a	n/a
Feb	13.9 C (57.0 F)	-30.0 C (-22.0 F)	n/a	n/a
Mar	25.0 C (77.0 F)	-25.0 C (-13.0 F)	n/a	n/a
Apr	28.9 C (84.0 F)	-15.0 C (5.0 F)	n/a	n/a
May	32.2 C (90.0 F)	-6.1 C (21.0 F)	n/a	n/a
Jun	36.7 C (98.1 F)	-1.7 C (28.9 F)	n/a	n/a
Jul	40.6 C (105.1 F)	3.3 C (37.9 F)	n/a	n/a
Aug	36.7 C (98.1 F)	-0.6 C (30.9 F)	n/a	n/a
Sep	36.1 C (97.0 F)	-3.9 C (25.0 F)	n/a	n/a
Oct	31.1 C (88.0 F)	-9.4 C (15.1 F)	n/a	n/a
Nov	25.0 C (77.0 F)	-18.9 C (-2.0 F)	n/a	n/a
Dec	19.5 C (67.1 F)	-28.0 C (-18.4 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Delhi Cda still stand. 1936 holds the most, with 46.

Standing records at Delhi Cda by the year they were set
Year set	Standing records
1934	36
1935	22
1936	46
1937	24
1938	35
1939	23
1940	34
1941	27
1942	27
1943	29
1944	17
1945	45
1946	32
1947	25
1948	22
1949	45
1950	43
1951	21
1952	19
1953	28
1954	29
1955	30
1956	25
1957	33
1958	23
1959	29
1960	19
1961	25
1962	29
1963	37
1964	35
1965	33
1966	32
1967	42
1968	21
1969	28
1970	24
1971	23
1972	24
1973	26
1974	21
1975	23
1976	37
1977	39
1978	18
1979	45
1980	18
1981	34
1982	33
1983	29

All-Time Record Progression

3 new records

3 all-time records were set at Delhi Cda between 24 January 1970 and 18 January 1976. Each dot is a new record.

When Delhi Cda set new all-time records
Date	Kind	Detail
1970-01-24	Record low minimum temperature	Record low minimum temperature -31.1 C (-24.0 F)
1972-01-15	Record low maximum temperature	Record low maximum temperature -18.9 C (-2.0 F)
1976-01-18	Record low minimum temperature	Record low minimum temperature -33.9 C (-29.0 F)

Wettest Day of Each Month

Jul: 117.6 mm (4.6 in)

The wettest day on record for each calendar month at Delhi Cda. The most was 117.6 mm (4.6 in) on 18 July 1942.

Record daily precipitation for each month at Delhi Cda
Month	Record daily precipitation (mm)	Date
Jan	47.8 mm (1.9 in)	13 January 1937
Feb	61.0 mm (2.4 in)	16 February 1954
Mar	53.6 mm (2.1 in)	5 March 1965
Apr	81.5 mm (3.2 in)	25 April 1937
May	70.0 mm (2.8 in)	27 May 1982
Jun	94.5 mm (3.7 in)	25 June 1968
Jul	117.6 mm (4.6 in)	18 July 1942
Aug	78.5 mm (3.1 in)	3 August 1957
Sep	73.9 mm (2.9 in)	5 September 1968
Oct	80.0 mm (3.1 in)	15 October 1954
Nov	45.2 mm (1.8 in)	1 November 1982
Dec	55.9 mm (2.2 in)	21 December 1967

Period of Record Coverage

1934 to 1983

50 years of record at Delhi Cda, 1934 to 1983. 1 years have data for under 90 percent of days and are left out of rankings: 1934.

Days with data per year at Delhi Cda
Year	Days with data	Share of year	Complete
1934	214	59%	No
1935	365	100%	Yes
1936	366	100%	Yes
1937	365	100%	Yes
1938	365	100%	Yes
1939	365	100%	Yes
1940	366	100%	Yes
1941	365	100%	Yes
1942	365	100%	Yes
1943	365	100%	Yes
1944	365	100%	Yes
1945	365	100%	Yes
1946	365	100%	Yes
1947	364	100%	Yes
1948	366	100%	Yes
1949	363	99%	Yes
1950	364	100%	Yes
1951	365	100%	Yes
1952	366	100%	Yes
1953	365	100%	Yes
1954	365	100%	Yes
1955	365	100%	Yes
1956	366	100%	Yes
1957	365	100%	Yes
1958	365	100%	Yes
1959	365	100%	Yes
1960	366	100%	Yes
1961	364	100%	Yes
1962	363	99%	Yes
1963	362	99%	Yes
1964	356	97%	Yes
1965	362	99%	Yes
1966	364	100%	Yes
1967	365	100%	Yes
1968	366	100%	Yes
1969	365	100%	Yes
1970	365	100%	Yes
1971	365	100%	Yes
1972	366	100%	Yes
1973	365	100%	Yes
1974	365	100%	Yes
1975	365	100%	Yes
1976	366	100%	Yes
1977	365	100%	Yes
1978	365	100%	Yes
1979	365	100%	Yes
1980	366	100%	Yes
1981	364	100%	Yes
1982	363	99%	Yes
1983	365	100%	Yes

Latest Records

Latest records at Delhi Cda
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
28 December 1983	Delhi Cda, CA	daily snowfall	10.3 cm (4.1 in)	0.1 cm (0.0 in)	36 years	15 of 100 (Routine)
25 December 1983	Delhi Cda, CA	daily low max	-12.5 C (9.5 F)	2.5 C (4.5 F)	14 years	13 of 100 (Routine)
24 December 1983	Delhi Cda, CA	daily low max	-13.0 C (8.6 F)	3.0 C (5.4 F)	13 years	14 of 100 (Routine)
24 December 1983	Delhi Cda, CA	daily snowfall	7.0 cm (2.8 in)	0.2 cm (0.1 in)	4 years	6 of 100 (Routine)
3 December 1983	Delhi Cda, CA	daily snowfall	10.2 cm (4.0 in)	4.4 cm (1.7 in)	8 years	16 of 100 (Routine)
23 November 1983	Delhi Cda, CA	daily high max (Tie)	16.0 C (60.8 F)	tie	4 years	1 of 100 (Routine)
13 November 1983	Delhi Cda, CA	daily low min	-10.0 C (14.0 F)	3.3 C (5.9 F)	42 years	23 of 100 (Routine)
13 November 1983	Delhi Cda, CA	daily low max	-1.5 C (29.3 F)	0.4 C (0.7 F)	40 years	17 of 100 (Routine)
12 November 1983	Delhi Cda, CA	daily low max (Tie)	0.0 C (32.0 F)	tie	32 years	3 of 100 (Routine)
11 November 1983	Delhi Cda, CA	daily snowfall	6.2 cm (2.4 in)	3.9 cm (1.5 in)	5 years	15 of 100 (Routine)
30 October 1983	Delhi Cda, CA	daily low min	-5.5 C (22.1 F)	0.5 C (0.9 F)	38 years	16 of 100 (Routine)
16 September 1983	Delhi Cda, CA	daily rain	29.0 mm (1.1 in)	3.9 mm (0.15 in)	5 years	9 of 100 (Routine)
10 September 1983	Delhi Cda, CA	daily high max	32.0 C (89.6 F)	0.9 C (1.6 F)	30 years	15 of 100 (Routine)
10 September 1983	Delhi Cda, CA	daily high min	22.5 C (72.5 F)	0.8 C (1.4 F)	24 years	13 of 100 (Routine)
6 September 1983	Delhi Cda, CA	daily high min	22.5 C (72.5 F)	1.4 C (2.5 F)	40 years	19 of 100 (Routine)
20 August 1983	Delhi Cda, CA	daily high min	23.5 C (74.3 F)	2.9 C (5.2 F)	14 years	15 of 100 (Routine)
11 August 1983	Delhi Cda, CA	daily rain	70.2 mm (2.8 in)	37.7 mm (1.5 in)	21 years	44 of 100 (Notable)
11 August 1983	Delhi Cda, CA	daily low max	17.5 C (63.5 F)	1.4 C (2.5 F)	28 years	17 of 100 (Routine)
29 July 1983	Delhi Cda, CA	daily high min	22.0 C (71.6 F)	0.9 C (1.6 F)	18 years	12 of 100 (Routine)
28 July 1983	Delhi Cda, CA	daily rain	42.0 mm (1.7 in)	10.8 mm (0.4 in)	1 year	15 of 100 (Routine)

Climate Trend

49 complete years, 1935 to 1983

One stripe for each of 49 complete years at Delhi Cda, 1935 to 1983. Blue stripes are years cooler than the station's own mean of 7.8 C (46.1 F); red stripes are warmer. The coolest year was 1978, at 6.7 C (44.1 F), and the warmest was 1949, at 9.3 C (48.8 F). The strongest colour marks a difference of 1.5 C (2.7 F).

Annual mean temperature at Delhi Cda as warming stripes, 1935 to 1983
Year	Annual mean temperature	Difference from the station mean
1935	7.4 C	-0.49 C
1936	7.6 C	-0.25 C
1937	8.2 C	+0.33 C
1938	8.7 C	+0.89 C
1939	8.2 C	+0.37 C
1940	6.8 C	-1.04 C
1941	8.8 C	+0.94 C
1942	7.9 C	+0.08 C
1943	7.1 C	-0.74 C
1944	8.2 C	+0.33 C
1945	7.6 C	-0.29 C
1946	9.0 C	+1.10 C
1947	8.2 C	+0.36 C
1948	8.4 C	+0.50 C
1949	9.3 C	+1.46 C
1950	7.1 C	-0.79 C
1951	7.6 C	-0.21 C
1952	8.7 C	+0.85 C
1953	9.0 C	+1.19 C
1954	8.4 C	+0.52 C
1955	8.9 C	+1.04 C
1956	7.7 C	-0.13 C
1957	8.1 C	+0.29 C
1958	7.3 C	-0.54 C
1959	8.3 C	+0.47 C
1960	7.3 C	-0.58 C
1961	7.5 C	-0.35 C
1962	7.1 C	-0.74 C
1963	6.8 C	-1.06 C
1964	8.1 C	+0.29 C
1965	7.5 C	-0.36 C
1966	7.6 C	-0.27 C
1967	7.3 C	-0.52 C
1968	7.7 C	-0.15 C
1969	7.8 C	-0.04 C
1970	7.9 C	+0.00 C
1971	8.1 C	+0.25 C
1972	7.1 C	-0.71 C
1973	8.8 C	+0.92 C
1974	7.6 C	-0.21 C
1975	8.2 C	+0.36 C
1976	7.0 C	-0.82 C
1977	7.7 C	-0.13 C
1978	6.7 C	-1.13 C
1979	7.2 C	-0.68 C
1980	7.2 C	-0.66 C
1981	7.8 C	-0.03 C
1982	7.7 C	-0.19 C
1983	8.4 C	+0.52 C

The fitted trend in annual mean temperature here over 1935 to 1983 is -0.12 C (-0.25 to 0.01) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.22 F (-0.45 to 0.01) per decade. The slope is a straight line fitted to 49 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Delhi Cda
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	-0.12 C (-0.25 to 0.01) per decade	-0.22 F (-0.45 to 0.01) per decade	1935 to 1983	49	Not clearly different from zero
Mean daily maximum	-0.3 C (-0.4 to -0.1) per decade	-0.5 F (-0.8 to -0.2) per decade	1935 to 1983	49	Fall
Mean daily minimum	0.03 C (-0.09 to 0.16) per decade	0.1 F (-0.2 to 0.3) per decade	1935 to 1983	49	Not clearly different from zero

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

1934 to 1983

Yearly extremes at Delhi Cda: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	40.6 C (105.1 F)	1936	33.3 C (91.9 F)	50
Coldest night (TNn)	-33.9 C (-29.0 F)	1976	-24.7 C (-12.5 F)	50
Wettest day (Rx1day)	117.6 mm (4.6 in)	1942	49.9 mm (2.0 in)	50
Wettest five days (Rx5day)	161.7 mm (6.4 in)	1937	75.9 mm (3.0 in)	50
Longest dry spell (CDD)	32 days	1943	17 days	50

Hottest day (TXx)

The hottest day of the year at Delhi Cda, 1934 to 1983. The record is 40.6 C (105.1 F) in 1936, marked on the chart; the median year is 33.3 C (91.9 F).

Hottest day (TXx) at Delhi Cda by year
Year	Hottest day (TXx)
1934	37.8 C (100.0 F)
1935	33.9 C (93.0 F)
1936	40.6 C (105.1 F)
1937	33.3 C (91.9 F)
1938	32.2 C (90.0 F)
1939	34.4 C (93.9 F)
1940	35.6 C (96.1 F)
1941	35.0 C (95.0 F)
1942	33.3 C (91.9 F)
1943	32.8 C (91.0 F)
1944	33.9 C (93.0 F)
1945	33.3 C (91.9 F)
1946	33.3 C (91.9 F)
1947	32.8 C (91.0 F)
1948	36.7 C (98.1 F)
1949	36.7 C (98.1 F)
1950	30.0 C (86.0 F)
1951	32.2 C (90.0 F)
1952	35.0 C (95.0 F)
1953	36.1 C (97.0 F)
1954	32.8 C (91.0 F)
1955	35.6 C (96.1 F)
1956	34.4 C (93.9 F)
1957	33.3 C (91.9 F)
1958	31.7 C (89.1 F)
1959	32.8 C (91.0 F)
1960	33.9 C (93.0 F)
1961	30.6 C (87.1 F)
1962	32.2 C (90.0 F)
1963	33.3 C (91.9 F)
1964	34.4 C (93.9 F)
1965	32.2 C (90.0 F)
1966	35.6 C (96.1 F)
1967	32.2 C (90.0 F)
1968	33.3 C (91.9 F)
1969	33.3 C (91.9 F)
1970	31.7 C (89.1 F)
1971	36.7 C (98.1 F)
1972	32.2 C (90.0 F)
1973	34.4 C (93.9 F)
1974	33.3 C (91.9 F)
1975	34.4 C (93.9 F)
1976	31.7 C (89.1 F)
1977	34.5 C (94.1 F)
1978	33.0 C (91.4 F)
1979	32.0 C (89.6 F)
1980	30.5 C (86.9 F)
1981	33.0 C (91.4 F)
1982	31.5 C (88.7 F)
1983	33.5 C (92.3 F)

Coldest night (TNn)

The coldest night of the year at Delhi Cda, 1934 to 1983. The record is -33.9 C (-29.0 F) in 1976, marked on the chart; the median year is -24.7 C (-12.5 F).

Coldest night (TNn) at Delhi Cda by year
Year	Coldest night (TNn)
1934	-22.8 C (-9.0 F)
1935	-26.7 C (-16.1 F)
1936	-26.7 C (-16.1 F)
1937	-20.6 C (-5.1 F)
1938	-22.2 C (-8.0 F)
1939	-23.3 C (-9.9 F)
1940	-28.9 C (-20.0 F)
1941	-25.0 C (-13.0 F)
1942	-27.8 C (-18.0 F)
1943	-28.3 C (-18.9 F)
1944	-30.0 C (-22.0 F)
1945	-27.8 C (-18.0 F)
1946	-20.6 C (-5.1 F)
1947	-17.2 C (1.0 F)
1948	-26.1 C (-15.0 F)
1949	-18.3 C (-0.9 F)
1950	-24.4 C (-11.9 F)
1951	-23.3 C (-9.9 F)
1952	-17.2 C (1.0 F)
1953	-20.0 C (-4.0 F)
1954	-21.7 C (-7.1 F)
1955	-27.8 C (-18.0 F)
1956	-21.1 C (-6.0 F)
1957	-28.9 C (-20.0 F)
1958	-23.9 C (-11.0 F)
1959	-23.3 C (-9.9 F)
1960	-23.9 C (-11.0 F)
1961	-29.4 C (-20.9 F)
1962	-26.1 C (-15.0 F)
1963	-29.4 C (-20.9 F)
1964	-23.3 C (-9.9 F)
1965	-26.1 C (-15.0 F)
1966	-24.4 C (-11.9 F)
1967	-26.7 C (-16.1 F)
1968	-22.2 C (-8.0 F)
1969	-20.0 C (-4.0 F)
1970	-31.1 C (-24.0 F)
1971	-23.3 C (-9.9 F)
1972	-23.3 C (-9.9 F)
1973	-25.0 C (-13.0 F)
1974	-23.9 C (-11.0 F)
1975	-26.1 C (-15.0 F)
1976	-33.9 C (-29.0 F)
1977	-29.4 C (-20.9 F)
1978	-26.0 C (-14.8 F)
1979	-27.0 C (-16.6 F)
1980	-24.0 C (-11.2 F)
1981	-26.0 C (-14.8 F)
1982	-26.0 C (-14.8 F)
1983	-19.5 C (-3.1 F)

Wettest day (Rx1day)

The wettest day of the year at Delhi Cda, 1934 to 1983. The record is 117.6 mm (4.6 in) in 1942, marked on the chart; the median year is 49.9 mm (2.0 in).

Wettest day (Rx1day) at Delhi Cda by year
Year	Wettest day (Rx1day)
1934	55.9 mm (2.2 in)
1935	41.1 mm (1.6 in)
1936	31.8 mm (1.3 in)
1937	81.5 mm (3.2 in)
1938	42.2 mm (1.7 in)
1939	52.6 mm (2.1 in)
1940	66.3 mm (2.6 in)
1941	33.5 mm (1.3 in)
1942	117.6 mm (4.6 in)
1943	45.2 mm (1.8 in)
1944	47.5 mm (1.9 in)
1945	73.7 mm (2.9 in)
1946	40.6 mm (1.6 in)
1947	51.1 mm (2.0 in)
1948	34.5 mm (1.4 in)
1949	49.8 mm (2.0 in)
1950	40.4 mm (1.6 in)
1951	51.1 mm (2.0 in)
1952	50.3 mm (2.0 in)
1953	35.8 mm (1.4 in)
1954	80.0 mm (3.1 in)
1955	70.4 mm (2.8 in)
1956	55.1 mm (2.2 in)
1957	78.5 mm (3.1 in)
1958	30.0 mm (1.2 in)
1959	41.9 mm (1.6 in)
1960	38.6 mm (1.5 in)
1961	52.3 mm (2.1 in)
1962	41.4 mm (1.6 in)
1963	43.7 mm (1.7 in)
1964	73.4 mm (2.9 in)
1965	53.6 mm (2.1 in)
1966	54.9 mm (2.2 in)
1967	63.0 mm (2.5 in)
1968	94.5 mm (3.7 in)
1969	59.9 mm (2.4 in)
1970	51.8 mm (2.0 in)
1971	34.5 mm (1.4 in)
1972	46.5 mm (1.8 in)
1973	48.3 mm (1.9 in)
1974	35.3 mm (1.4 in)
1975	42.2 mm (1.7 in)
1976	50.0 mm (2.0 in)
1977	49.7 mm (2.0 in)
1978	52.0 mm (2.0 in)
1979	38.2 mm (1.5 in)
1980	36.4 mm (1.4 in)
1981	44.9 mm (1.8 in)
1982	70.0 mm (2.8 in)
1983	70.2 mm (2.8 in)

Wettest five days (Rx5day)

The wettest five days of the year at Delhi Cda, 1934 to 1983. The record is 161.7 mm (6.4 in) in 1937, marked on the chart; the median year is 75.9 mm (3.0 in).

Wettest five days (Rx5day) at Delhi Cda by year
Year	Wettest five days (Rx5day)
1934	69.3 mm (2.7 in)
1935	45.2 mm (1.8 in)
1936	48.0 mm (1.9 in)
1937	161.7 mm (6.4 in)
1938	59.5 mm (2.3 in)
1939	80.5 mm (3.2 in)
1940	95.2 mm (3.7 in)
1941	61.5 mm (2.4 in)
1942	137.6 mm (5.4 in)
1943	80.5 mm (3.2 in)
1944	95.7 mm (3.8 in)
1945	113.1 mm (4.5 in)
1946	61.2 mm (2.4 in)
1947	83.1 mm (3.3 in)
1948	76.9 mm (3.0 in)
1949	72.2 mm (2.8 in)
1950	74.9 mm (2.9 in)
1951	69.7 mm (2.7 in)
1952	87.1 mm (3.4 in)
1953	58.7 mm (2.3 in)
1954	145.0 mm (5.7 in)
1955	95.5 mm (3.8 in)
1956	68.0 mm (2.7 in)
1957	92.7 mm (3.6 in)
1958	50.3 mm (2.0 in)
1959	62.5 mm (2.5 in)
1960	57.2 mm (2.3 in)
1961	59.2 mm (2.3 in)
1962	53.0 mm (2.1 in)
1963	66.1 mm (2.6 in)
1964	113.8 mm (4.5 in)
1965	93.2 mm (3.7 in)
1966	84.1 mm (3.3 in)
1967	67.1 mm (2.6 in)
1968	121.1 mm (4.8 in)
1969	67.3 mm (2.6 in)
1970	57.4 mm (2.3 in)
1971	51.3 mm (2.0 in)
1972	86.9 mm (3.4 in)
1973	114.1 mm (4.5 in)
1974	72.4 mm (2.9 in)
1975	65.4 mm (2.6 in)
1976	85.7 mm (3.4 in)
1977	118.2 mm (4.7 in)
1978	81.4 mm (3.2 in)
1979	77.2 mm (3.0 in)
1980	73.6 mm (2.9 in)
1981	71.1 mm (2.8 in)
1982	88.2 mm (3.5 in)
1983	108.4 mm (4.3 in)

Longest dry spell (CDD)

The longest dry spell of the year at Delhi Cda, 1934 to 1983. The record is 32 days in 1943, marked on the chart; the median year is 17 days.

Longest dry spell (CDD) at Delhi Cda by year
Year	Longest dry spell (CDD)
1934	16 days
1935	17 days
1936	23 days
1937	16 days
1938	17 days
1939	16 days
1940	11 days
1941	19 days
1942	16 days
1943	32 days
1944	16 days
1945	13 days
1946	13 days
1947	18 days
1948	20 days
1949	19 days
1950	13 days
1951	14 days
1952	15 days
1953	15 days
1954	13 days
1955	15 days
1956	12 days
1957	22 days
1958	15 days
1959	18 days
1960	18 days
1961	17 days
1962	14 days
1963	30 days
1964	12 days
1965	18 days
1966	20 days
1967	21 days
1968	17 days
1969	18 days
1970	16 days
1971	12 days
1972	19 days
1973	17 days
1974	19 days
1975	17 days
1976	27 days
1977	11 days
1978	17 days
1979	22 days
1980	25 days
1981	13 days
1982	16 days
1983	20 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

49 years with a frost

Across 49 years with a frost, the median last spring frost at Delhi Cda falls on 17 May and the median first autumn frost on 29 September, which leaves a median of 135 days between them.

Fitted over all years, the growing season changes by +2.1 days per decade at this station.

Frost dates and growing season at Delhi Cda
Measure	Median, all years	Earliest period	Recent period (1954 to 1983)	Recent against earliest	Fitted trend
Last spring frost	17 May	n/a	18 May	n/a	-0.6 days per decade
First autumn frost	29 September	n/a	29 September	n/a	+1.4 days per decade
Growing days	135 days	n/a	134 days	n/a	+2.1 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

49 years, 1935 to 1983

A day with at least 48.6 mm (1.9 in) of rain is expected about once in 2 years. A day with at least 119.1 mm (4.7 in) of rain is expected about once in 100 years.

Rainfall return levels at Delhi Cda: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	48.6 mm (1.9 in)
5 years	63.6 mm (2.5 in)
10 years	74.9 mm (2.9 in)
25 years	91.0 mm (3.6 in)
50 years	104.4 mm (4.1 in)	Longer than the 49 years of record
100 years	119.1 mm (4.7 in)	Longer than the 49 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, 49 years of values from 1935 to 1983.

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: 117.6 mm (4.6 in) in 1942; 94.5 mm (3.7 in) in 1968; 81.5 mm (3.2 in) in 1937.

Station Changes

No change in the annual mean temperature of this station was found against its neighbours.

Download the Data

Data for Delhi Cda standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Delhi Cda 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). Records are computed by this site and are not official.

Data as of 2026-10-17. Last revised 17 October 2026 (2026-10-17).