Monthly outlook for Derby, NY: average high 59.8°, average low 47.4°. That is 2.1° above the climate normal for October. Precipitation is expected on 8 days (about 4.0 inches), against a normal of 7 days and 2.3 inches. The warmest day looks like 10 October (68.4°), the coolest 19 October (37.2°).
59.8°/47.4°
Average high / low
+2.1°
Above normal
8 / 7
Wet days / normal
4.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 October – 18 October
61.5°
57.4°
+2.3°
19 October – 28 October
57°
53.3°
+2°
29 October – 7 November
at normal
50.3°
—
October records over 66 years
84.4°1 October 2019All-time high
24.1°20 October 1972All-time low
Climate normals and records are computed from the nearest reference point — North Collins (10 mi).
Sat, 1068° / 46°0
68 °
Derby, Saturday, 10 October
Overcast. High 68°, low 46°.
Pressure30.36 inHg
Wind6.6 mph SE
Humidity58%
Visibility6.2 mi
Dew point49°
Sun, 1166° / 52°0.34
66 °
Derby, Sunday, 11 October
Rain. High 66°, low 52°.
Pressure30.06 inHg
Wind8.5 mph E
Humidity85%
Visibility2.5 mi
Dew point56°
Mon, 1268° / 60°0.01
68 °
Derby, Monday, 12 October
Light rain. High 68°, low 60°.
Pressure29.91 inHg
Wind8.9 mph W
Humidity89%
Visibility6.2 mi
Dew point58°
Tue, 1368° / 60°1.77
68 °
Derby, Tuesday, 13 October
Heavy rain. High 68°, low 60°.
Pressure29.71 inHg
Wind20.7 mph SW
Humidity95%
Visibility—
Dew point64°
Wed, 1459° / 55°0.05
59 °
Derby, Wednesday, 14 October
Light rain. High 59°, low 55°.
Pressure30.06 inHg
Wind11.7 mph NE
Humidity71%
Visibility—
Dew point49°
Thu, 1558° / 43°0
58 °
Derby, Thursday, 15 October
Overcast. High 58°, low 43°.
Pressure30.21 inHg
Wind8.5 mph SE
Humidity42%
Visibility—
Dew point33°
Fri, 1667° / 52°0.65
67 °
Derby, Friday, 16 October
Rain. High 67°, low 52°.
Pressure29.53 inHg
Wind31.7 mph SW
Humidity93%
Visibility—
Dew point64°
Sat, 1751° / 40°0.23
51 °
Derby, Saturday, 17 October
Light rain. High 51°, low 40°.
Pressure29.85 inHg
Wind30.2 mph W
Humidity70%
Visibility—
Dew point38°
Sun, 1844° / 37°0.04
44 °
Derby, Sunday, 18 October
Snow. High 44°, low 37°.
Pressure30.36 inHg
Wind12.8 mph NW
Humidity54%
Visibility—
Dew point28°
Mon, 1951° / 37°0
51 °
Derby, Monday, 19 October
Mostly clear. High 51°, low 37°.
Pressure30.39 inHg
Wind8.2 mph S
Humidity42%
Visibility—
Dew point27°
Tue, 2056° / 40°0
56 °
Derby, Tuesday, 20 October
Mostly clear. High 56°, low 40°.
Pressure30.42 inHg
Wind8.4 mph S
Humidity48%
Visibility—
Dew point34°
Wed, 2161° / 43°0
61 °
Derby, Wednesday, 21 October
Partly cloudy. High 61°, low 43°.
Pressure30.39 inHg
Wind13.6 mph S
Humidity46%
Visibility—
Dew point38°
Thu, 2263° / 50°0
63 °
Derby, Thursday, 22 October
Overcast. High 63°, low 50°.
Pressure30.18 inHg
Wind15.2 mph S
Humidity52%
Visibility—
Dew point43°
Fri, 2361° / 54°0.31
61 °
Derby, Friday, 23 October
Rain. High 61°, low 54°.
Pressure29.83 inHg
Wind24.5 mph S
Humidity62%
Visibility—
Dew point47°
Sat, 2450° / 43°0.57
50 °
Derby, Saturday, 24 October
Rain. High 50°, low 43°.
Pressure29.94 inHg
Wind17.1 mph NW
Humidity77%
Visibility—
Dew point40°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 2553° / 42°0.16
53 °
Derby, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high53°
Average low42°
Average precipitation0.16 in
Chance of precipitation45%
Record high74° (2012)
Record low30° (1962)
Mon, 2652° / 41°0.12
52 °
Derby, Monday, 26 October
Climate normal for this date — 60-year average.
Average high52°
Average low41°
Average precipitation0.12 in
Chance of precipitation47%
Record high73° (2023)
Record low30° (1976)
Tue, 2752° / 41°0.15
52 °
Derby, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high52°
Average low41°
Average precipitation0.15 in
Chance of precipitation45%
Record high72° (2023)
Record low27° (1976)
Wed, 2852° / 40°0.14
52 °
Derby, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high52°
Average low40°
Average precipitation0.14 in
Chance of precipitation50%
Record high69° (2014)
Record low28° (1976)
Thu, 2950° / 39°0.14
50 °
Derby, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high50°
Average low39°
Average precipitation0.14 in
Chance of precipitation45%
Record high67° (1971)
Record low26° (1965)
Fri, 3051° / 39°0.11
51 °
Derby, Friday, 30 October
Climate normal for this date — 60-year average.
Average high51°
Average low39°
Average precipitation0.11 in
Chance of precipitation30%
Record high73° (2024)
Record low29° (1983)
Sat, 3153° / 40°0.18
53 °
Derby, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high53°
Average low40°
Average precipitation0.18 in
Chance of precipitation40%
Record high75° (2024)
Record low26° (2020)
Sun, 0152° / 41°0.14
52 °
Derby, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high52°
Average low41°
Average precipitation0.14 in
Chance of precipitation47%
Record high66° (2016)
Record low30° (1965)
Mon, 0252° / 40°0.19
52 °
Derby, Monday, 2 November
Climate normal for this date — 60-year average.
Average high52°
Average low40°
Average precipitation0.19 in
Chance of precipitation53%
Record high65° (1982)
Record low24° (1965)
Tue, 0351° / 39°0.13
51 °
Derby, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high51°
Average low39°
Average precipitation0.13 in
Chance of precipitation48%
Record high70° (1961)
Record low28° (1984)
Wed, 0449° / 38°0.14
49 °
Derby, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high49°
Average low38°
Average precipitation0.14 in
Chance of precipitation48%
Record high69° (2015)
Record low24° (1991)
Thu, 0550° / 38°0.14
50 °
Derby, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high50°
Average low38°
Average precipitation0.14 in
Chance of precipitation55%
Record high75° (2022)
Record low20° (1991)
Fri, 0649° / 37°0.14
49 °
Derby, Friday, 6 November
Climate normal for this date — 60-year average.
Average high49°
Average low37°
Average precipitation0.14 in
Chance of precipitation58%
Record high69° (2022)
Record low25° (1967)
Sat, 0747° / 37°0.11
47 °
Derby, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high47°
Average low37°
Average precipitation0.11 in
Chance of precipitation50%
Record high69° (1975)
Record low23° (1967)
About the monthly outlook
How accurate is a 30-day forecast?
The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Derby, NY are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.
What does "above normal" mean?
We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.
Where do the 66-year records come from?
They are real temperature extremes recorded in Derby, NY since 1960: the highest and lowest reading for each calendar date, with the year it happened.
How often is it updated?
The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.