Record envelope, standing records and threshold days for Vermilion Lock (USC00169319), Louisiana, United States, with 36 years of record.
Key Facts for Vermilion Lock
Vermilion Lock (USC00169319) is a weather station in Louisiana, United States at 29.78 latitude and -92.20 longitude, 3 m (10 ft) above sea level.
The station reports from 1950 to 1985, 36 years of record.
1,464 records set at Vermilion Lock still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Vermilion Lock set a daily record precipitation of 24.4 mm (1.0 in) on 24 May 1985.
About the Station
Location: Louisiana, United States, 29.78 latitude, -92.20 longitude.
Elevation: 3 m (10 ft).
Period of record: 1950 to 1985, 36 years.
Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
0 days at or beyond a record
Record highRecord low2026 daily maximum2026 daily minimum
The band shows the record high and record low for each calendar day at Vermilion Lock. 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 Vermilion Lock, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
27.2 C (81.0 F)
-11.7 C (10.9 F)
n/a
n/a
Feb
27.2 C (81.0 F)
-9.4 C (15.1 F)
n/a
n/a
Mar
28.9 C (84.0 F)
-5.6 C (21.9 F)
n/a
n/a
Apr
32.2 C (90.0 F)
0.6 C (33.1 F)
n/a
n/a
May
33.9 C (93.0 F)
7.2 C (45.0 F)
n/a
n/a
Jun
36.7 C (98.1 F)
9.4 C (48.9 F)
n/a
n/a
Jul
38.3 C (100.9 F)
13.9 C (57.0 F)
n/a
n/a
Aug
37.2 C (99.0 F)
14.4 C (57.9 F)
n/a
n/a
Sep
36.7 C (98.1 F)
5.0 C (41.0 F)
n/a
n/a
Oct
33.9 C (93.0 F)
0.0 C (32.0 F)
n/a
n/a
Nov
32.2 C (90.0 F)
-5.6 C (21.9 F)
n/a
n/a
Dec
30.0 C (86.0 F)
-11.1 C (12.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Vermilion Lock still stand. 1957 holds the most, with 85.
Standing records at Vermilion Lock by the year they were set
Year set
Standing records
1951
67
1952
62
1953
47
1954
53
1955
49
1956
46
1957
85
1958
36
1959
29
1960
52
1961
59
1962
45
1963
44
1964
36
1965
28
1966
27
1967
42
1968
38
1969
42
1970
34
1971
42
1972
27
1973
33
1974
68
1975
39
1976
39
1977
25
1978
31
1979
30
1980
37
1981
41
1982
45
1983
33
1984
43
1985
10
All-Time Record Progression
1 new records
1 all-time records were set at Vermilion Lock between 11 January 1982 and 11 January 1982. Each dot is a new record.
When Vermilion Lock set new all-time records
Date
Kind
Detail
1982-01-11
Record low minimum temperature
Record low minimum temperature -11.7 C (10.9 F)
Wettest Day of Each Month
Jun: 251.5 mm (9.9 in)
The wettest day on record for each calendar month at Vermilion Lock. The most was 251.5 mm (9.9 in) on 11 June 1975.
Record daily precipitation for each month at Vermilion Lock
Month
Record daily precipitation (mm)
Date
Jan
101.1 mm (4.0 in)
16 January 1955
Feb
124.5 mm (4.9 in)
5 February 1955
Mar
147.3 mm (5.8 in)
18 March 1957
Apr
195.3 mm (7.7 in)
21 April 1977
May
143.5 mm (5.6 in)
21 May 1984
Jun
251.5 mm (9.9 in)
11 June 1975
Jul
133.1 mm (5.2 in)
3 July 1964
Aug
192.5 mm (7.6 in)
29 August 1978
Sep
142.2 mm (5.6 in)
5 September 1973
Oct
165.1 mm (6.5 in)
23 October 1984
Nov
115.3 mm (4.5 in)
27 November 1978
Dec
195.6 mm (7.7 in)
6 December 1971
Period of Record Coverage
1951 to 1985
Complete yearUnder 90 percent of days
35 years of record at Vermilion Lock, 1951 to 1985. 5 years have data for under 90 percent of days and are left out of rankings: 1951, 1965, 1966, 1967, 1985.
Cooler than the station meanWarmer than the station mean
One stripe for each of 28 complete years at Vermilion Lock, 1952 to 1984. Blue stripes are years cooler than the station's own mean of 19.4 C (66.9 F); red stripes are warmer. The coolest year was 1968, at 18.2 C (64.8 F), and the warmest was 1957, at 20.2 C (68.4 F). The strongest colour marks a difference of 1.2 C (2.2 F).
Annual mean temperature at Vermilion Lock as warming stripes, 1952 to 1984
Year
Annual mean temperature
Difference from the station mean
1952
19.5 C
+0.07 C
1953
20.0 C
+0.59 C
1954
19.4 C
+0.03 C
1955
19.8 C
+0.37 C
1956
19.8 C
+0.40 C
1957
20.2 C
+0.84 C
1958
18.9 C
-0.50 C
1959
19.3 C
-0.06 C
1960
19.0 C
-0.40 C
1961
19.2 C
-0.19 C
1962
19.7 C
+0.29 C
1963
19.2 C
-0.15 C
1964
19.3 C
-0.11 C
1968
18.2 C
-1.15 C
1969
19.0 C
-0.42 C
1971
19.8 C
+0.46 C
1973
19.7 C
+0.29 C
1974
19.5 C
+0.15 C
1975
19.7 C
+0.28 C
1976
18.5 C
-0.86 C
1977
19.3 C
-0.04 C
1978
19.0 C
-0.42 C
1979
18.6 C
-0.77 C
1980
19.6 C
+0.22 C
1981
19.9 C
+0.49 C
1982
19.9 C
+0.53 C
1983
18.9 C
-0.53 C
1984
19.9 C
+0.54 C
This station does not have enough complete years (30 are needed) to fit a temperature trend.
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
1950 to 1985
Yearly extremes at Vermilion Lock: 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)
1971
35.0 C (95.0 F)
35
Coldest night (TNn)
-11.7 C (10.9 F)
1982
-5.6 C (21.9 F)
35
Wettest day (Rx1day)
251.5 mm (9.9 in)
1975
113.7 mm (4.5 in)
36
Wettest five days (Rx5day)
298.5 mm (11.8 in)
1975
163.6 mm (6.4 in)
36
Longest dry spell (CDD)
49 days
1953
23 days
36
Hottest day (TXx)
The hottest day of the year at Vermilion Lock, 1950 to 1985. The record is 38.3 C (100.9 F) in 1971, marked on the chart; the median year is 35.0 C (95.0 F).
Hottest day (TXx) at Vermilion Lock by year
Year
Hottest day (TXx)
1950
n/a
1951
36.7 C (98.1 F)
1952
35.0 C (95.0 F)
1953
35.0 C (95.0 F)
1954
37.2 C (99.0 F)
1955
34.4 C (93.9 F)
1956
35.0 C (95.0 F)
1957
35.0 C (95.0 F)
1958
35.0 C (95.0 F)
1959
34.4 C (93.9 F)
1960
36.7 C (98.1 F)
1961
36.1 C (97.0 F)
1962
36.1 C (97.0 F)
1963
35.0 C (95.0 F)
1964
35.0 C (95.0 F)
1965
35.0 C (95.0 F)
1966
35.0 C (95.0 F)
1967
35.6 C (96.1 F)
1968
36.7 C (98.1 F)
1969
36.1 C (97.0 F)
1970
35.0 C (95.0 F)
1971
38.3 C (100.9 F)
1972
36.1 C (97.0 F)
1973
35.6 C (96.1 F)
1974
36.7 C (98.1 F)
1975
34.4 C (93.9 F)
1976
35.0 C (95.0 F)
1977
35.0 C (95.0 F)
1978
35.0 C (95.0 F)
1979
34.4 C (93.9 F)
1980
37.2 C (99.0 F)
1981
35.6 C (96.1 F)
1982
36.7 C (98.1 F)
1983
36.1 C (97.0 F)
1984
35.6 C (96.1 F)
1985
33.3 C (91.9 F)
Coldest night (TNn)
The coldest night of the year at Vermilion Lock, 1950 to 1985. The record is -11.7 C (10.9 F) in 1982, marked on the chart; the median year is -5.6 C (21.9 F).
Coldest night (TNn) at Vermilion Lock by year
Year
Coldest night (TNn)
1950
n/a
1951
-9.4 C (15.1 F)
1952
-5.0 C (23.0 F)
1953
-3.3 C (26.1 F)
1954
-2.8 C (27.0 F)
1955
-5.6 C (21.9 F)
1956
-3.9 C (25.0 F)
1957
-6.1 C (21.0 F)
1958
-5.0 C (23.0 F)
1959
-4.4 C (24.1 F)
1960
-5.0 C (23.0 F)
1961
-5.0 C (23.0 F)
1962
-11.1 C (12.0 F)
1963
-9.4 C (15.1 F)
1964
-7.8 C (18.0 F)
1965
-5.6 C (21.9 F)
1966
-7.2 C (19.0 F)
1967
-3.3 C (26.1 F)
1968
-3.9 C (25.0 F)
1969
-5.6 C (21.9 F)
1970
-7.2 C (19.0 F)
1971
-4.4 C (24.1 F)
1972
-5.6 C (21.9 F)
1973
-5.6 C (21.9 F)
1974
-3.3 C (26.1 F)
1975
-5.6 C (21.9 F)
1976
-7.8 C (18.0 F)
1977
-7.2 C (19.0 F)
1978
-3.9 C (25.0 F)
1979
-7.2 C (19.0 F)
1980
-5.6 C (21.9 F)
1981
-5.0 C (23.0 F)
1982
-11.7 C (10.9 F)
1983
-11.1 C (12.0 F)
1984
-8.3 C (17.1 F)
1985
-10.0 C (14.0 F)
Wettest day (Rx1day)
The wettest day of the year at Vermilion Lock, 1950 to 1985. The record is 251.5 mm (9.9 in) in 1975, marked on the chart; the median year is 113.7 mm (4.5 in).
Wettest day (Rx1day) at Vermilion Lock by year
Year
Wettest day (Rx1day)
1950
67.3 mm (2.6 in)
1951
130.8 mm (5.1 in)
1952
85.9 mm (3.4 in)
1953
100.3 mm (3.9 in)
1954
62.2 mm (2.4 in)
1955
124.5 mm (4.9 in)
1956
188.2 mm (7.4 in)
1957
147.3 mm (5.8 in)
1958
87.1 mm (3.4 in)
1959
95.3 mm (3.8 in)
1960
69.9 mm (2.8 in)
1961
167.1 mm (6.6 in)
1962
113.0 mm (4.4 in)
1963
84.3 mm (3.3 in)
1964
133.1 mm (5.2 in)
1965
71.1 mm (2.8 in)
1966
123.4 mm (4.9 in)
1967
114.3 mm (4.5 in)
1968
67.3 mm (2.6 in)
1969
89.4 mm (3.5 in)
1970
129.5 mm (5.1 in)
1971
195.6 mm (7.7 in)
1972
99.1 mm (3.9 in)
1973
158.8 mm (6.3 in)
1974
132.1 mm (5.2 in)
1975
251.5 mm (9.9 in)
1976
80.0 mm (3.1 in)
1977
195.3 mm (7.7 in)
1978
192.5 mm (7.6 in)
1979
109.0 mm (4.3 in)
1980
136.4 mm (5.4 in)
1981
100.8 mm (4.0 in)
1982
163.8 mm (6.4 in)
1983
73.7 mm (2.9 in)
1984
165.1 mm (6.5 in)
1985
63.5 mm (2.5 in)
Wettest five days (Rx5day)
The wettest five days of the year at Vermilion Lock, 1950 to 1985. The record is 298.5 mm (11.8 in) in 1975, marked on the chart; the median year is 163.6 mm (6.4 in).
Wettest five days (Rx5day) at Vermilion Lock by year
Year
Wettest five days (Rx5day)
1950
90.9 mm (3.6 in)
1951
213.8 mm (8.4 in)
1952
130.3 mm (5.1 in)
1953
158.8 mm (6.3 in)
1954
85.3 mm (3.4 in)
1955
154.0 mm (6.1 in)
1956
230.3 mm (9.1 in)
1957
164.4 mm (6.5 in)
1958
141.2 mm (5.6 in)
1959
173.7 mm (6.8 in)
1960
147.3 mm (5.8 in)
1961
226.3 mm (8.9 in)
1962
127.2 mm (5.0 in)
1963
205.2 mm (8.1 in)
1964
234.4 mm (9.2 in)
1965
140.2 mm (5.5 in)
1966
216.7 mm (8.5 in)
1967
203.7 mm (8.0 in)
1968
109.2 mm (4.3 in)
1969
165.1 mm (6.5 in)
1970
162.8 mm (6.4 in)
1971
248.4 mm (9.8 in)
1972
143.8 mm (5.7 in)
1973
297.2 mm (11.7 in)
1974
146.6 mm (5.8 in)
1975
298.5 mm (11.8 in)
1976
89.2 mm (3.5 in)
1977
221.0 mm (8.7 in)
1978
215.8 mm (8.5 in)
1979
154.4 mm (6.1 in)
1980
252.8 mm (10.0 in)
1981
129.1 mm (5.1 in)
1982
213.3 mm (8.4 in)
1983
132.1 mm (5.2 in)
1984
215.4 mm (8.5 in)
1985
73.7 mm (2.9 in)
Longest dry spell (CDD)
The longest dry spell of the year at Vermilion Lock, 1950 to 1985. The record is 49 days in 1953, marked on the chart; the median year is 23 days.
Longest dry spell (CDD) at Vermilion Lock by year
Year
Longest dry spell (CDD)
1950
18 days
1951
27 days
1952
45 days
1953
49 days
1954
22 days
1955
29 days
1956
22 days
1957
24 days
1958
16 days
1959
23 days
1960
22 days
1961
30 days
1962
32 days
1963
35 days
1964
23 days
1965
21 days
1966
22 days
1967
24 days
1968
15 days
1969
28 days
1970
26 days
1971
24 days
1972
26 days
1973
18 days
1974
48 days
1975
27 days
1976
18 days
1977
17 days
1978
34 days
1979
28 days
1980
17 days
1981
21 days
1982
21 days
1983
20 days
1984
23 days
1985
15 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
27 years with a frost
Across 27 years with a frost, the median last spring frost at Vermilion Lock falls on 23 February and the median first autumn frost on 26 November, which leaves a median of 281 days between them.
Fitted over all years, the growing season changes by +6.4 days per decade at this station.
Frost dates and growing season at Vermilion Lock
Measure
Median, all years
Earliest period
Recent period (1952 to 1984)
Recent against earliest
Fitted trend
Last spring frost
23 February
n/a
23 February
n/a
-0.7 days per decade
First autumn frost
26 November
n/a
26 November
n/a
+5.8 days per decade
Growing days
281 days
n/a
281 days
n/a
+6.4 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
33 years, 1951 to 1984
A day with at least 118.9 mm (4.7 in) of rain is expected about once in 2 years. A day with at least 271.2 mm (10.7 in) of rain is expected about once in 100 years.
Rainfall return levels at Vermilion Lock: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
118.9 mm (4.7 in)
5 years
160.7 mm (6.3 in)
10 years
187.9 mm (7.4 in)
25 years
221.9 mm (8.7 in)
50 years
246.7 mm (9.7 in)
Longer than the 33 years of record
100 years
271.2 mm (10.7 in)
Longer than the 33 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, 33 years of values from 1951 to 1984.
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: 251.5 mm (9.9 in) in 1975; 195.6 mm (7.7 in) in 1971; 195.3 mm (7.7 in) in 1977.
Download the Data
Data for Vermilion Lock standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Vermilion Lock 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.