As of 02:21 EDT

Weather in Sempronius, NY

41°Current weather

Sempronius, Saturday, 17 October, 02:21

Light rain. Feels like 37°. High 42°, low 31°.

Pressure30.00 inHg
Wind5.7 mph N
Humidity83%
Visibility6.2 mi
Dew point36°

Monthly outlook for Sempronius, NY: average high 52.9°, average low 38.1°. That is 0.4° below the climate normal for October. Precipitation is expected on 4 days (about 1.2 inches), against a normal of 7 days and 2.2 inches. The warmest day looks like 25 October (60.9°), the coolest 18 October (29.9°).

52.9°/38.1°
Average high / low
−0.4°
Below normal
4 / 7
Wet days / normal
1.2 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
17 October – 26 October53.9°54.5°-0.4°
27 October – 5 November51.4°51.7°-0.2°
6 November – 15 Novemberat normal46.4°—

October records over 66 years

82.4°1 October 2019All-time high
24.8°20 October 1972All-time low

Climate normals and records are computed from the nearest reference point — Groton (11 mi).

Sun, 1857° / 30°0Clear
57 °Clear

Sempronius, Sunday, 18 October

Clear. High 57°, low 30°.

Pressure30.53 inHg
Wind7.5 mph SW
Humidity67%
Visibility6.2 mi
Dew point42°
Mon, 1959° / 39°0Clear
59 °Clear

Sempronius, Monday, 19 October

Clear. High 59°, low 39°.

Pressure30.45 inHg
Wind5.3 mph W
Humidity46%
Visibility6.2 mi
Dew point38°
Tue, 2057° / 44°0Overcast
57 °Overcast

Sempronius, Tuesday, 20 October

Overcast. High 57°, low 44°.

Pressure30.39 inHg
Wind5.3 mph N
Humidity84%
Visibility6.2 mi
Dew point47°
Wed, 2155° / 37°0Clear
55 °Clear

Sempronius, Wednesday, 21 October

Clear. High 55°, low 37°.

Pressure30.39 inHg
Wind5.6 mph N
Humidity55%
Visibility—
Dew point34°
Thu, 2253° / 39°0Overcast
53 °Overcast

Sempronius, Thursday, 22 October

Overcast. High 53°, low 39°.

Pressure30.24 inHg
Wind8.2 mph N
Humidity86%
Visibility—
Dew point42°
Fri, 2354° / 36°0Clear
54 °Clear

Sempronius, Friday, 23 October

Clear. High 54°, low 36°.

Pressure30.33 inHg
Wind11.5 mph N
Humidity66%
Visibility—
Dew point37°
Sat, 2457° / 34°0Clear
57 °Clear

Sempronius, Saturday, 24 October

Clear. High 57°, low 34°.

Pressure30.39 inHg
Wind7.1 mph SE
Humidity57%
Visibility—
Dew point32°
Sun, 2561° / 38°0Clear
61 °Clear

Sempronius, Sunday, 25 October

Clear. High 61°, low 38°.

Pressure30.12 inHg
Wind19.3 mph NW
Humidity45%
Visibility—
Dew point31°
Mon, 2644° / 32°0Clear
44 °Clear

Sempronius, Monday, 26 October

Clear. High 44°, low 32°.

Pressure30.36 inHg
Wind15.1 mph NW
Humidity59%
Visibility—
Dew point26°
Tue, 2753° / 32°0Overcast
53 °Overcast

Sempronius, Tuesday, 27 October

Overcast. High 53°, low 32°.

Pressure30.30 inHg
Wind5.6 mph SW
Humidity48%
Visibility—
Dew point23°
Wed, 2856° / 45°0.05Light rain
56 °Light rain

Sempronius, Wednesday, 28 October

Light rain. High 56°, low 45°.

Pressure29.97 inHg
Wind13 mph W
Humidity90%
Visibility—
Dew point48°
Thu, 2952° / 40°0Overcast
52 °Overcast

Sempronius, Thursday, 29 October

Overcast. High 52°, low 40°.

Pressure30.12 inHg
Wind6.8 mph NW
Humidity83%
Visibility—
Dew point42°
Fri, 3049° / 41°0.07Light rain
49 °Light rain

Sempronius, Friday, 30 October

Light rain. High 49°, low 41°.

Pressure30.00 inHg
Wind19.7 mph S
Humidity76%
Visibility—
Dew point39°
Sat, 3154° / 48°0.72Rain
54 °Rain

Sempronius, Saturday, 31 October

Rain. High 54°, low 48°.

Pressure29.56 inHg
Wind19.6 mph S
Humidity96%
Visibility—
Dew point49°
Sun, 0145° / 42°0.35Rain
45 °Rain

Sempronius, Sunday, 1 November

Rain. High 45°, low 42°.

Pressure29.85 inHg
Wind15.9 mph N
Humidity96%
Visibility—
Dew point41°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 0252° / 39°0.18Climate normal
52 °Climate normal

Sempronius, Monday, 2 November

Climate normal for this date — 60-year average.

Average high52°
Average low39°
Average precipitation0.18 in
Chance of precipitation43%
Record high72° (1982)
Record low25° (1965)
Tue, 0352° / 38°0.09Climate normal
52 °Climate normal

Sempronius, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high52°
Average low38°
Average precipitation0.09 in
Chance of precipitation47%
Record high71° (1982)
Record low28° (1988)
Wed, 0450° / 38°0.12Climate normal
50 °Climate normal

Sempronius, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high50°
Average low38°
Average precipitation0.12 in
Chance of precipitation33%
Record high70° (2015)
Record low26° (1991)
Thu, 0550° / 38°0.11Climate normal
50 °Climate normal

Sempronius, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high50°
Average low38°
Average precipitation0.11 in
Chance of precipitation47%
Record high70° (2022)
Record low23° (1991)
Fri, 0649° / 37°0.12Climate normal
49 °Climate normal

Sempronius, Friday, 6 November

Climate normal for this date — 60-year average.

Average high49°
Average low37°
Average precipitation0.12 in
Chance of precipitation40%
Record high71° (2022)
Record low26° (1962)
Sat, 0748° / 36°0.1Climate normal
48 °Climate normal

Sempronius, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high48°
Average low36°
Average precipitation0.1 in
Chance of precipitation47%
Record high68° (1975)
Record low12° (1962)
Sun, 0848° / 35°0.15Climate normal
48 °Climate normal

Sempronius, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high48°
Average low35°
Average precipitation0.15 in
Chance of precipitation40%
Record high67° (2020)
Record low23° (1976)
Mon, 0948° / 35°0.11Climate normal
48 °Climate normal

Sempronius, Monday, 9 November

Climate normal for this date — 60-year average.

Average high48°
Average low35°
Average precipitation0.11 in
Chance of precipitation37%
Record high69° (2020)
Record low19° (2019)
Tue, 1048° / 35°0.15Climate normal
48 °Climate normal

Sempronius, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high48°
Average low35°
Average precipitation0.15 in
Chance of precipitation52%
Record high69° (2020)
Record low19° (2017)
Wed, 1146° / 35°0.16Climate normal
46 °Climate normal

Sempronius, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high46°
Average low35°
Average precipitation0.16 in
Chance of precipitation58%
Record high64° (2012)
Record low17° (2017)
Thu, 1245° / 33°0.16Climate normal
45 °Climate normal

Sempronius, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high45°
Average low33°
Average precipitation0.16 in
Chance of precipitation50%
Record high66° (1964)
Record low17° (2019)
Fri, 1344° / 31°0.09Climate normal
44 °Climate normal

Sempronius, Friday, 13 November

Climate normal for this date — 60-year average.

Average high44°
Average low31°
Average precipitation0.09 in
Chance of precipitation52%
Record high59° (1985)
Record low15° (2019)
Sat, 1444° / 33°0.13Climate normal
44 °Climate normal

Sempronius, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high44°
Average low33°
Average precipitation0.13 in
Chance of precipitation40%
Record high64° (1994)
Record low15° (1986)
Sun, 1544° / 32°0.16Climate normal
44 °Climate normal

Sempronius, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high44°
Average low32°
Average precipitation0.16 in
Chance of precipitation53%
Record high62° (1960)
Record low13° (1996)

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 Sempronius, 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 Sempronius, 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.