Olean, United States — Weather in April 2027

Climate Overview

Olean, United States in April has mild conditions, with highs averaging 13.3°C (56°F) and noticeably cooler mornings. Rain falls on about 15 days this month, totalling around 114 mm. Temperatures drop noticeably between day and night.

This month falls at the middle of Spring.

Daily highs in April gradually rise from around 10°C (50°F) at the start to 15°C (59°F) by month's end.

April sees fairly even rainfall, totalling about 114 mm across the month.

The warmest days tend to fall around the 25th, averaging 15.6°C (60°F).

Compared to March, this month is about 6°C warmer with 2 more rainy days. Temperatures will rise further into May.

Monthly April Averages

Temperature

13°C / 3°C

Feels Like

11°C / 0°C

Rain

15 days · 114 mm

Sunshine

8.4h / day

Humidity

70% — Humid

Wind

19 km/h

Wind Direction

WSW (253°)

Gusts

48 km/h

Daylight

13.4 h

Cloud Cover

70%

Clear Sky Days

2.3

UV Index

4.8 — Moderate

Dew Point

3°C — Dry

Moon Phase

Waxing Gibbous · 61%

Snow Days

7 days · 9.6 cm

Frost Days

9 days

Climate Charts

Daily averages based on historical data (2016–2025)

Daily Temperature

HighLow

Daily Precipitation

Rainfall

Daily Sunshine

Sunshine

Daily Wind Speed

Wind Speed

Sun Position

Sunrise 06:34

Daylight 13.3h

Sunset 19:55

What to Expect

Keep afternoons flexible as tropical showers are common — they typically clear within an hour.

Wet weather can spread across much of the day, so it is best to keep outdoor plans flexible.

2 of the last 5 yearly records were warmer than this month's long-run average.

Compare Months

Month	Temp	Feels Like	Rain	Sun	Humidity	UV	Status	Details
January	0°C / -7°C	-4°C / -12°C	15days (87 mm) Wet	4.5h Fair	78% Humid	1.9 Low	Poor	View Details
February	3°C / -6°C	-2°C / -11°C	13days (87 mm) Wet	5.8h Fair	75% Muggy	3 Moderate	Poor	View Details
March	7°C / -2°C	4°C / -7°C	13days (90 mm) Wet	7.3h Good	70% Muggy	4.2 Moderate	Poor	View Details
April	13°C / 3°C	11°C / 0°C	15days (114 mm) Wet	8.4h Good	70% Muggy	4.8 Moderate	Poor	View Details
May	19°C / 10°C	18°C / 8°C	15days (112 mm) Wet	9.6h Good	75% Muggy	5.8 High	Good	View Details
June best	24°C / 14°C	24°C / 14°C	13days (103 mm) Wet	11.1h Excellent	75% Muggy	6.7 High	Excellent	View Details
July best	26°C / 17°C	28°C / 18°C	14days (91 mm) Wet	11.3h Excellent	76% Humid	6.9 High	Excellent	View Details
August best	25°C / 17°C	26°C / 17°C	13days (101 mm) Wet	10.4h Excellent	77% Humid	5.9 High	Excellent	View Details
September best	22°C / 13°C	22°C / 13°C	9days (84 mm) Wet	8.8h Good	78% Humid	5 Moderate	Excellent	View Details
October	16°C / 8°C	14°C / 5°C	12days (104 mm) Wet	6.9h Fair	78% Humid	3.4 Moderate	Fair	View Details
November	8°C / 1°C	4°C / -3°C	13days (81 mm) Wet	5.3h Fair	77% Humid	2.2 Moderate	Poor	View Details
December	2°C / -4°C	-2°C / -9°C	15days (85 mm) Wet	3.9h Poor	79% Humid	1.6 Low	Poor	View Details

What to Wear

Bundle up with a warm coat, scarf, and closed-toe shoes. Thermal layers underneath give flexibility between indoors and outdoors.

Temperatures drop significantly at night, so pack layers you can add or remove throughout the day.

A waterproof jacket or compact umbrella is recommended for occasional showers.

Packing List

Layered clothingLight jacketUmbrellaWaterproof jacketWaterproof shoes

Frequently Asked Questions

Expand all

Is April a good time to visit Olean?

April is typically poor for visiting Olean, with average highs of 13°C (56°F) and around 15 rainy days. Olean, United States in April has mild conditions, with highs averaging 13.3°C (56°F) and noticeably cooler mornings. Ra

Does it rain a lot in Olean in April?

Olean typically sees around 15 rainy days in April with 114 mm (4.5 in) of total rainfall. Pack a waterproof jacket.

Does it get cold at night in Olean in April?

Yes, nights in Olean during April are cold, averaging 3°C (38°F). Pack warm layers and a coat for evenings.

What should I pack for Olean in April?

With highs of 13°C (56°F) and lows of 3°C (38°F) in April, we recommend: Layered clothing, Light jacket, Umbrella, Waterproof jacket, Waterproof shoes. Comfortable walking shoes are essential.

Is April among the best months weather-wise in Olean?

April is not the most favourable month weather-wise in Olean. Consider visiting during months with milder temperatures or less rainfall for a better experience.

What is the UV index in Olean in April?

The average UV index in Olean during April is 5 (moderate). Sunscreen and sunglasses are recommended during midday hours.

How many hours of daylight are there in Olean in April?

Olean gets approximately 13 hours of daylight per day in April, with around 8 hours of sunshine.

Does it snow in Olean in April?

Yes, Olean typically sees around 7 snow days in April with roughly 10 cm (4 in) of snowfall.

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