Begin by logging into your SurveyMonkey account and navigating to the survey whose data you wish to export. Use the 'Results' tab to select the data set. Choose the 'Export' option, typically found at the top right corner, and select a format compatible with your needs, such as CSV or Excel. Download the file to your local system.

Open the downloaded file to inspect the data. Clean and format the data as necessary. This involves removing any unwanted columns, renaming columns to adhere to Snowflake naming conventions, and ensuring the data types are consistent and suitable for Snowflake requirements (e.g., dates in a recognizable format).

If you haven't already, create a Snowflake account. Once logged in, set up a new database where you will store the SurveyMonkey data. Within this database, create a schema that will house your tables. Ensure you have the necessary permissions to load data into Snowflake.

Use Snowflake’s SQL editor to create a table that matches the structure of your prepared data. Define the table's schema, ensuring the columns and data types align with those in your CSV or Excel file. For example:
```sql
CREATE TABLE survey_data (
response_id STRING,
question1 STRING,
question2 STRING,
timestamp TIMESTAMP
);
```

Snowflake requires data to be loaded from a stage. Use the Snowflake web interface or SnowSQL (Snowflake's command-line tool) to create a stage. Upload your CSV or Excel file to this stage using the PUT command in SnowSQL:
```bash
PUT file://path_to_your_file.csv @your_stage;
```

Once the data file is in a Snowflake stage, use the COPY INTO command to load the data from the stage into your target table. Ensure the file format options in the command match your file's format:
```sql
COPY INTO survey_data
FROM @your_stage/file.csv
FILE_FORMAT = (TYPE = 'CSV' FIELD_OPTIONALLY_ENCLOSED_BY = '"' SKIP_HEADER = 1);
```

After executing the COPY INTO command, verify that the data has been loaded correctly. You can do this by running a simple SELECT query on your Snowflake table:
```sql
SELECT FROM survey_data;
```
Check that all rows and columns have been imported as expected. This step ensures the integrity and accuracy of your data transfer process.

Following these steps will allow you to transfer data from SurveyMonkey to Snowflake without using third-party connectors or integrations, ensuring a direct and reliable data migration process.