---
title: "dailyStatistics(for:startDay:endDay:including:)"
framework: weatherkit
role: symbol
role_heading: Instance Method
path: "weatherkit/weatherservice/dailystatistics(for:startday:endday:including:)"
---

# dailyStatistics(for:startDay:endDay:including:)

Returns daily weather statistics for the requested location, for each day from the start day to the end day, inclusively.

## Declaration

```swift
final func dailyStatistics<each T>(for location: CLLocation, startDay: Int, endDay: Int, including dataSets: repeat DailyWeatherStatisticsQuery<each T>) async throws -> (repeat DailyWeatherStatistics<each T>) where repeat each T : Decodable, repeat each T : Encodable, repeat each T : Equatable, repeat each T : Sendable
```

## Parameters

- `location`: The requested location.
- `startDay`: The first day of the span, between 1 and 366.
- `endDay`: The last day of the span, between 1 and 366.

## Return Value

Return Value The requested daily weather statistics

## Discussion

Discussion note: Weather data error WeatherError The statistics returned for each day are derived from weather data recorded over the past decades, to the present date. Each item returned represents statistics for a particular day of the year, in UTC. This is a variadic API in which any combination of data sets can be requested and returned as a tuple. The following example will return statistics for the first 10 days of the year. let (dailyPrecipitationStatistics, dailyTemperatureStatistics) = try await service.dailyStatistics(for: newYork, startDay: 1, endDay: 10, including: .precipitation, .temperature) If startDay is greater than endDay, then a wrap around will occur. This next example will return statistics for days 365, 366, 1, and 2. let (dailyPrecipitationStatistics, dailyTemperatureStatistics) = try await service.dailyStatistics(for: newYork, startDay: 365, endDay: 2, including: .precipitation, .temperature) note: startDay in 1...366 && endDay in 1...366