Get Previous Month, Previous Year and Previous 2 Years Data

[icdns]

Hi, 

I would like to ask for your help. How can I get the "Previous month Average Temperature (Whole month)" 

I have my date dimension and fact table for the temperature but I am not getting my desired result. Below is my dax. 

Previous Month: 

CALCULATE(AVERAGE(FACT_WEATHER[MAX_TEMP]) + AVERAGE(FACT_WEATHER[MIN_TEMP])/2,

DATEADD('DIM_CALENDAR'[Date], -1, MONTH)

)

Can I do the same for previous year and previous 2 years?

Here's my sample data and expected answer:

Year	Month	Day	Average Temperature
2023	July	1	30.90
2023	July	2	29.10
2023	July	3	29.80
2023	July	4	29.50
2023	July	5	30.15
2023	July	6	30.80
2023	July	7	29.90
2023	July	8	29.90
2023	July	9	29.95
2023	July	10	28.65
2023	July	11	29.45
2023	July	12	29.70
2023	July	13	24.80
2023	July	14	27.50
2023	July	15	27.25
2023	July	16	27.25
2023	July	17	28.20
2023	July	18	28.95
2023	July	19	28.30
2023	July	20	28.70
2023	July	21	29.55
2023	July	22	28.60
2023	July	23	28.60
2023	July	24	28.35
2023	July	25	28.80
2023	July	26	28.15
2023	July	27	27.35
2023	July	28	27.20
2023	July	29	26.55
2023	July	30	26.35
2023	July	31	27.00
2023	Aug	1	25.70
2023	Aug	2	26.85
2023	Aug	3	27.90
2023	Aug	4	28.45

Expected Values:
Current Month Average Temp (August 1 -5)	Previous Month Average Temp (July 1-31)
27.22	28.56

Thanks!

[icdns]

Here's my sample data and expected answer:

Year	Month	Day	Average Temperature
2023	July	1	30.90
2023	July	2	29.10
2023	July	3	29.80
2023	July	4	29.50
2023	July	5	30.15
2023	July	6	30.80
2023	July	7	29.90
2023	July	8	29.90
2023	July	9	29.95
2023	July	10	28.65
2023	July	11	29.45
2023	July	12	29.70
2023	July	13	24.80
2023	July	14	27.50
2023	July	15	27.25
2023	July	16	27.25
2023	July	17	28.20
2023	July	18	28.95
2023	July	19	28.30
2023	July	20	28.70
2023	July	21	29.55
2023	July	22	28.60
2023	July	23	28.60
2023	July	24	28.35
2023	July	25	28.80
2023	July	26	28.15
2023	July	27	27.35
2023	July	28	27.20
2023	July	29	26.55
2023	July	30	26.35
2023	July	31	27.00
2023	Aug	1	25.70
2023	Aug	2	26.85
2023	Aug	3	27.90
2023	Aug	4	28.45

Expected Values:
Current Month Average Temp (August 1 -5)	Previous Month Average Temp (July 1-31)
27.22	28.56

[miTutorials]

Please try the Parallel period Dax , explained in the below tutorial. You can create the AVG dax instead of SUM.

DAX Functions: ParallelPeriod() vs. SamePeriodLastYear() - Explained with Examples | MiTutorials - Y...

[Ashish_Mathur]

Hi,

Please find attached the PBI file.

Hope this helps.

[icdns]

Hello, 

Thank you for this but i won't be displaying the temp together with the month. I will only display it separately that's why I need it as a dax 😞 

[v-cgao-msft · Accepted solution]

Hi @icdns ,

Please check the pbix file.

Best Regards,
Gao
Community Support Team

If there is any post helps, then please consider Accept it as the solution  to help the other members find it more quickly. If I misunderstand your needs or you still have problems on it, please feel free to let us know. Thanks a lot!

How to get your questions answered quickly --  How to provide sample data in the Power BI Forum

[Ashish_Mathur]

Hi,

I really do not know the result that you want.

[Ritaf1983]

Hi @icdns 

Please provide sample data that covers your issue or question completely, in a usable format (not as a screenshot).
https://community.powerbi.com/t5/Community-Blog/How-to-provide-sample-data-in-the-Power-BI-Forum/ba-...
Please show the expected outcome based on the sample data you provided.

https://community.powerbi.com/t5/Desktop/How-to-Get-Your-Question-Answered-Quickly/m-p/1447523